WO2022207001A1

WO2022207001A1 - Channel state information reporting method and related apparatus

Info

Publication number: WO2022207001A1
Application number: PCT/CN2022/085171
Authority: WO
Inventors: 张永平; 张闽; 余政; 葛士斌
Original assignee: 华为技术有限公司
Priority date: 2021-04-02
Filing date: 2022-04-02
Publication date: 2022-10-06
Also published as: EP4300842A1; US20240022303A1; CN115189736A

Abstract

A channel state information (CSI) reporting method and a related apparatus. The method comprises: a terminal acquiring first configuration information, which is used for indicating first rank restriction indication information and second rank restriction indication information, wherein the first rank restriction indication information is used for acquiring rank indication (RI) information in first-type CSI information, the first-type CSI information being associated with a reference signal resource group, and the second rank restriction indication information is used for acquiring RI information in second-type CSI information, the second-type CSI information being associated with a reference signal resource; and the terminal sending a CSI report to a network device, wherein the CSI report includes the first-type CSI information or the second-type CSI information. It can be seen that by means of the method, two pieces of rank restriction indication information are used to respectively restrict RI information in first parts of CSI reports which correspond to a multi-TRP measurement assumption and a single-TRP measurement assumption, thereby reducing the power consumption of the terminal and the consumption of computing resources.

Description

Channel state information reporting method and related device

This application claims the priority of the Chinese patent application with the application number 202110363922.9 and the application title "Channel Status Information Reporting Method and Related Apparatus" filed with the China Patent Office on April 2, 2021, the entire contents of which are incorporated herein by reference middle.

technical field

The present application relates to the field of communication technologies, and in particular, to a channel state information reporting method and related apparatus.

Background technique

In the communication process of the wireless system, the network device needs to obtain the channel state information (Channel State Information, CSI) of the downlink channel between different transmission and reception points (Transmission Reception Point, TRP) and different terminals in advance. The CSI acquisition process may include CSI measurement, and the CSI measurement may include two types, one is CSI measurement hypothesized for single TRP measurement, and the other is CSI measurement hypothesized for multiple TRP measurement. The CSI acquisition process also includes the reporting of CSI reports. The terminal uses two levels of channel state information to report the CSI report. The two levels of channel state information correspond to two parts, which are the first part of the CSI report and the second part of the CSI report, respectively. The first part of the CSI report is sent before the second part of the CSI report, the first part of the CSI report has a fixed payload size, and the information contained in the first part of the CSI report can be used to determine the information contained in the second part of the CSI report bit length. For example, the first part of the CSI report includes the following indication information: rank indication (RI), channel quality indication (CQI) and reference resource indication (CSI-RS resource indicator, CRI).

In the CSI measurement and reporting of the single TRP measurement assumption, for the RI information in the first part of the CSI report, the network device may set the range of RI values that the terminal is allowed to choose to report, that is, limit the range of the terminal to report RI. The rank indication restriction can reduce the complexity of the terminal when calculating CSI, so that the CSI calculation is more efficient. For example, for a terminal with only 2-stream reception capability, the rank indication restriction information may limit the range of the terminal to choose to report the rank indicator (rank indicator, RI) to {1, 2}, thereby avoiding the power consumption and computing resources of the terminal. of waste.

In the CSI measurement and reporting of a single TRP assumption, for the PMI information in the CSI report, in order to reduce the interference of neighboring cells, the network device can also set the range of the PMI that allows the terminal to select the reported PMI through high-level parameters, that is, the codebook subset limit is used to limit Use of certain PMIs in CSI reporting. This avoids the problem that the network device adopts some transmission parameters determined by precoding, which causes strong interference to neighboring cells.

Therefore, for CSI measurement reporting of multiple TRP measurement assumptions, how to perform rank indication restriction and/or codebook subset restriction is an urgent problem to be solved.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a channel state information reporting method and related apparatus, which solve the rank indication limitation and/or codebook subset limitation corresponding to multiple TRP measurement assumptions.

In a first aspect, the present application provides a channel state information reporting method, which can be applied to a terminal device or a chip or a chip system on the terminal side. In the method, the terminal may acquire first configuration information, where the first configuration information is used to indicate the first rank restriction indication information and the second rank restriction indication information. Wherein, the first rank restriction indication information is used to acquire RI information in the first type of CSI information; the second rank restriction indication information is used to acquire RI information in the second type of CSI information. The terminal sends a CSI report to the network device, where the CSI report includes the first type of CSI information or the second type of CSI information.

The first part of the CSI report includes the first type of CSI information or the second type of CSI information.

The first type of CSI information is associated with a reference signal resource group; the reference signal resource group is one of one or more reference signal resource groups determined from the reference signal resource set; the reference signal resource set includes K Reference signal resources, where K is an integer greater than or equal to 2. The second type of CSI information has an associated relationship with one reference signal resource in the K reference signal resources.

It can be seen that the present application can use two rank restriction indication information to limit the RI information that is allowed to be selected and reported in the first part of the CSI report corresponding to the multi-TRP measurement hypothesis and the single-TRP measurement hypothesis, thereby reducing the power consumption of the terminal and the consumption of computing resources. consume.

In addition, the present application considers that the load size of the RI information in the first part of the CSI report depends on the measurement assumption (ie, 1 RI information, or 2 RI information); and considers that in some configurations, the first part of the CSI report contains 1 The second type of CSI information still includes one first type of CSI information, which is decided by the terminal according to the measurement result. In order to avoid the problem that the load of the RI information in the first part of the CSI report is affected by the difference in the number of RI information in different measurement assumptions, the load of the first part is ambiguous and the load is multiplied. That is, the first rank restriction indication information is used to determine the RI information in the first type of CSI information, the second rank restriction indication information is used to determine the RI information in the second type of CSI information), and one rank restriction indication information is used to determine Compared with the method of one or two RI information, it is beneficial to avoid the influence that the load of RI information is proportional to the number of RI information caused by only the same selection range under the two measurement assumptions, thereby helping to ensure that under different measurement assumptions. Consistency of the RI information payload in the first part of the CSI report. Therefore, it is beneficial to further reduce the complexity and time delay of processing the CSI information on the network device side.

In a second aspect, the present application further provides a channel state information reporting method, which can be applied to a network device or a chip or a chip system on the network side. The method corresponds to the first aspect, and is described from the network side. In the method, first configuration information is sent; the first configuration information is used to indicate the first rank restriction indication information and the second rank restriction indication information; the first rank restriction indication information is used to obtain the first type of CSI information; the second rank restriction indication information is used to obtain the first type of CSI information; The rank restriction indication information is used to obtain the second type of CSI information. A CSI report from the terminal is received; the CSI report contains the first type of CSI information or the second type of CSI information.

The first type of CSI information is associated with a reference signal resource group. The reference signal resource group is one of one or more reference signal resource groups determined from the reference signal resource set. The reference signal resource set includes K reference signal resources, where K is an integer greater than or equal to 2. The second type of CSI information is associated with one reference signal resource in the K reference signal resources.

It can be seen that the present application can use two rank restriction indication information to respectively limit the RI information that is allowed to be reported in the first part of the CSI report corresponding to the multi-TRP measurement hypothesis and the single-TRP measurement hypothesis, thereby reducing the power consumption of the terminal and the consumption of computing resources .

In addition, the present application adopts a method of two rank restriction indication information (that is, the first rank restriction indication information is used to determine the RI information in the first type of CSI information, and the second rank restriction indication information is used to determine the RI information in the second type of CSI information. RI information), compared with the method of using one rank restriction indication information to determine the corresponding RI information under the two measurement assumptions, it is beneficial to avoid the RI information load and RI caused by only the same selection range under the two measurement assumptions. The influence is proportional to the number of information, thereby helping to ensure the consistency of the RI information load in the first part of the CSI report under different measurement assumptions. Furthermore, it is beneficial to further reduce the complexity and time delay of the network device processing CSI information.

Some optional embodiments applicable to the first aspect or the second aspect are set forth below.

For the terminal side, in an optional implementation manner, the method further includes: the terminal determines S reference signal resources from the reference signal resource set, where S is an integer greater than or equal to 1 and less than K. The second type of CSI information has an associated relationship with one reference signal resource in the S reference signal resources. It can be seen that this embodiment reduces the complexity of CSI measurement by the terminal by limiting the number of reference signal resources.

For the network device side, in an optional implementation manner, the second type of CSI information is associated with one reference signal resource in the S reference signal resources; the S reference signal resources are the K reference signal resources Some reference signal resources in the resource. Among them, S is an integer greater than or equal to 1 and less than K.

In an optional implementation manner, the first rank restriction indication information is used to determine A first parameters and/or B second parameters, where A and B are respectively integers greater than or equal to 1, and satisfy A and B The sum is equal to M1; M1 is an integer greater than 1.

Optionally, the first parameter and the second parameter are integers greater than or equal to 1 and less than or equal to M1. Optionally, M1 can be equal to 4 or 8. The value of M1 determines the maximum candidate value of the RI value, and the receiving capability of the terminal can be 4 streams or 8 streams. Therefore, the value of M1 is equal to 4 or 8, that is, RI The maximum candidates for the value are 4 or 8. The first parameter has an associated relationship with the second parameter. For example, the set composed of A first parameters is a subset of the set {1, 2, 3, 4...M1}, and the set composed of B second parameters is the set { 1,2,3,4...M1}, and the set of B second parameters is the complement of the set of A first parameters, or the set of B second parameters and the set of A first parameters The intersection of a set of parameters is the empty set.

The first parameter is an RI value that the terminal is allowed to select, and the second parameter is an RI value that the terminal is prohibited from selecting. In this way, the first rank restriction indication information is used to obtain the rank indication RI information in the first type of CSI information, which may include: determining the RI information in the reported first type of CSI information from the A first parameters, and/or, It is prohibited to determine the RI information in the reported first type of CSI information from the B second parameters.

It can be seen that, in this embodiment, it is assumed that the multi-TRP measurement reported by the terminal corresponds to the RI information in the first part of the CSI report that can correspond to two RI values, and these two RI values are one RI value indicated by the first rank restriction indication information The RI value allowed to be reported in the set, but not any RI value other than the RI value set.

In an optional implementation manner, the first rank restriction indication information is also used to determine C third parameters and/or D fourth parameters, where C and D are integers greater than or equal to 1, respectively, and satisfy C and The sum of D is equal to M2, which is an integer greater than 1.

Optionally, the third parameter and the fourth parameter are respectively an integer greater than or equal to 1 and less than or equal to M2.

It can be seen that, in this embodiment, the first rank restriction indication information is not only used to determine A first parameters and/or B second parameters, but also the first rank restriction indication information is also used to determine C third parameters and/or or the D fourth parameter. That is, the first rank restriction indication information may be used to determine two sets of RI values. For example, a first RI value set and a second RI value set, wherein the first RI value set includes A first parameters and/or B second parameters; the second RI value set includes C third parameters and/or or the D fourth parameter. Optionally, M2 may be equal to M1, or may not be equal to M1, which is not limited in this application. Optional M2 can be equal to 4 or 8.

The first parameter and the third parameter are both RI values that the terminal is allowed to choose to report, and the second parameter and the fourth parameter are both the RI values that the terminal is prohibited from choosing to report.

It can be seen that, in this embodiment, the assumption that the multi-TRP measurement reported by the terminal corresponds to the RI information in the first part of the CSI report may correspond to two RI values, and the two RI values belong to the above two RI value sets respectively. That is, in this embodiment, the two RI values corresponding to the RI information in the first type of CSI information are one of the A first parameters and one of the C third parameters, respectively.

In an optional implementation manner, the first rank restriction indication information is used to determine P parameter combinations; each parameter combination includes multiple parameters, where P is an integer greater than or equal to 1, and the multiple parameters are respectively An integer greater than 1 and less than or equal to M3.

Optionally, M3 is an integer greater than or equal to 1, and optionally, M3 may be equal to 4 or 8.

Wherein, each parameter combination is an RI value combination that the terminal is allowed to choose to report. Correspondingly, multiple parameters in each parameter combination are also RI values that the terminal is allowed to choose to report.

It can be seen that in this embodiment, the RI values corresponding to the RI information in the first part of the corresponding CSI report for the multi-TRP measurement reported by the terminal all belong to the same parameter combination.

In an optional implementation manner, the second rank restriction indication information is used to determine the E fifth parameters and the F sixth parameters, where E and F are respectively integers greater than or equal to 1, and satisfy the sum of E and F. Equal to M4, where M4 is an integer greater than 1. Optionally, M4 may be equal to 8.

Wherein, the fifth parameter and the sixth parameter are respectively an integer greater than or equal to 1 and less than or equal to M4.

The fifth parameter is the RI value that the terminal is allowed to choose to report, and the sixth parameter is the RI value that the terminal is prohibited from choosing to report.

An optional implementation manner, combined with the above-mentioned corresponding implementation manner, A and E satisfy

Alternatively, A and E satisfy

in

Indicates a round-up operation.

It can be seen that this embodiment can ensure that when the terminal reports two TRP measurement hypotheses, the load of the RI information in the first part of the CSI report is equal to the load of the RI information in the first part of the CSI report when the terminal reports a single TRP measurement hypothesis. Therefore, under different measurement assumptions of the terminal, the CSI report load is the same, so as to avoid the problem that the network device cannot determine the CSI report load, which leads to the failure of reception.

In another optional implementation manner, in combination with the above-mentioned corresponding implementation manner, A, C and E satisfy

Or, A, C and, E satisfy

It can be seen that the RI values allowed to be reported under the two TRP measurement assumptions are two sets of RI values. For example, one includes A RI values that are allowed to be reported, and the other includes C RI values that are allowed to be reported. Under the assumption of single TRP measurement, reporting is allowed. The RI value of E is, therefore,

or

It can be guaranteed that when the terminal reports multiple TRP measurement hypotheses, the load of the RI information in the first part of the CSI report is equal to the load of the RI information in the first part of the CSI report when the terminal reports the single TRP measurement hypothesis.

In yet another optional implementation manner, in combination with the above-mentioned corresponding implementation manner, the P and the E satisfy

in

Indicates a round-up operation.

It can be seen that under the assumption of multiple TRP measurement, the number of RI values allowed to be reported is P; under the assumption of single TRP measurement, the number of RI values allowed to be reported is E. Therefore,

It can be guaranteed that when the terminal reports multiple TRP measurement assumptions, the load of the RI information in the first part of the CSI report is equal to the load of the RI information in the first part of the CSI report when the terminal reports a single TRP measurement assumption.

In an optional implementation manner, the first type of CSI information includes first CSI measurement information;

The first CSI measurement information is obtained on multiple reference signal resources in the reference signal resource group associated with the Z first interference measurement resources and the first type of CSI information.

The first interference measurement resource is configured by the network device; the first interference measurement resource has an association relationship with the reference signal resource group associated with the first type of CSI information. Z is an integer greater than or equal to 1. The first CSI measurement information includes rank indication RI information; the RI information has an associated relationship with two first RI values, and each first RI value is one of the A first parameters; and each first RI value is not Equal to any of the B second parameters. That is to say, the two first RI values corresponding to the rank indication RI information in the first CSI measurement information are both RI values that the above-mentioned A terminals are allowed to choose to report, but neither of the above-mentioned B-terminals is allowed to choose to report. It is forbidden to select the reported RI value.

In another optional implementation manner, the first type of CSI report includes second CSI measurement information;

The second CSI measurement information is obtained on multiple reference signal resources in the reference signal resource group associated with the Z second interference measurement resources and the first type of CSI information.

The second interference measurement resource is configured by the network device; the second interference measurement resource is associated with the reference signal resource group associated with the first type of CSI information, or the second interference measurement resource is associated with the first type of CSI information. The multiple reference signal resources in the signal resource group have an associated relationship. Z is an integer greater than or equal to 1. The second CSI measurement information includes rank indication RI information; the RI information has an associated relationship with the second RI value and the third RI value, respectively, the second RI value is equal to one of the A first parameters, and the second RI value is not is equal to any one of the B second parameters; the third RI value is equal to one of the C third parameters, and the third RI value is not equal to any one of the D fourth parameters.

That is to say, the second RI value and the third value corresponding to the RI information of the rank indication in the second CSI measurement information, wherein the second value is the above-mentioned RI value that the A terminals are allowed to choose to report, and neither is the above-mentioned RI value. The B terminals are prohibited from selecting the RI value to report; the third value is the RI value that the C terminals mentioned above are allowed to choose to report, but not the RI value that the D terminals mentioned above are prohibited from selecting and reporting.

In yet another optional embodiment, the first type of CSI report includes third CSI measurement information;

The third CSI measurement information is obtained on multiple reference signal resources in the reference signal resource group associated with the Z third interference measurement resources and the first type of CSI information.

The third interference measurement resource is configured by the network device; the third interference measurement resource is associated with the reference signal resource group associated with the first type of CSI information, or the third interference measurement resource is associated with the first type of CSI information. The multiple reference signal resources in the signal resource group have an associated relationship. Z is an integer greater than or equal to 1. The third CSI measurement information includes rank indication RI information; the RI information has an associated relationship with two RI values, and the two RI values are equal to multiple parameters in one parameter combination of the P parameter combinations.

That is to say, the two RI values corresponding to the rank indication RI information in the third CSI measurement information are both RI values included in one RI value combination in the above-mentioned P RI value combinations.

In an optional implementation manner, the second type of CSI information includes fourth CSI measurement information. The fourth CSI measurement information is obtained on the reference signal resources associated with the Z fourth interference measurement resources and the second type of CSI information.

Wherein, the fourth interference measurement resource is configured by the network device; the fourth interference measurement resource has an association relationship with the reference signal resource associated with the second type of CSI information. Z is an integer greater than or equal to 1. The fourth CSI measurement information includes RI information; the RI information has an associated relationship with a fourth RI value, and the fourth RI value is equal to one of the E fifth parameters; and the fourth RI value is not equal to any one of the F sixth parameters .

That is to say, the RI value corresponding to the RI information in the fourth CSI measurement information is the RI value that the E terminals are allowed to choose to report, but not the RI value that the F terminals are forbidden to choose and report. .

In a third aspect, the present application also provides a channel state information reporting method, which can be applied to a terminal device or a chip or a chip system on the terminal side. In the method, the terminal may acquire second configuration information, where the second configuration information is used to indicate the first codebook subset information and the second codebook subset information; the first codebook subset information is associated with the first reference signal resource subset; the second codebook subset information is associated with the second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively associated with different transmission configuration indication states; the terminal according to the first codebook subset Set information and second codebook subset information, and send a CSI report to the network device.

It can be seen that in the present application, the two precoding indication PMIs in the CSI report corresponding to the assumption of multi-TRP measurement can be selected based on different codebook subset information, so as to avoid the PMI reported by the terminal, causing the signal transmitted by the network device to cause damage to neighboring cells. Strong interference problem.

In addition, the present application considers the situation where different TRPs are located in different geographical locations, and the possibility of causing strong interference to adjacent cells is less likely to be the same PMI, and adopts the method of two codebook subset information (ie, the first codebook subset The set information is used for the selection of the PMI of one TRP on the corresponding interference measurement resources and reference signal resources, and the second codebook subset information is used for the selection of the PMI of the other TRP on the corresponding interference measurement resources and reference signal resources), Compared with the method of using one codebook subset information for the PMI selection of two TRPs on the corresponding interference measurement resources and reference signal resources, it can avoid the CSI feedback caused by too few PMIs allowed to be selected by the codebook subset restriction. Invalid or inaccurate questions.

In a fourth aspect, the present application further provides a channel state information reporting method, which can be applied to a network device or a chip or a chip system on the network side. The method corresponds to the third aspect, and is described from the network side. In this method, the network device sends second configuration information, where the second configuration information is used to indicate the first codebook subset information and the second codebook subset information; the first codebook subset information is associated with the first reference signal resource subset set; the second codebook subset information is associated with the second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively associated with different transmission configuration indication states; Set information and second codebook subset information, and receive a CSI report from the terminal.

Some embodiments applicable to the third or fourth aspect are set forth below.

In an optional implementation manner, the first codebook subset information is used to determine G seventh parameters and H eighth parameters, where G and H are integers greater than or equal to 1, and satisfy the sum of G and H equal to M5; the second codebook subset information is used to determine the J ninth parameters and K tenth parameters, where J and K are integers greater than or equal to 1, and satisfy the sum of J and K equal to M5; where, M5 is an integer greater than 1; wherein, M5 is determined based on the second configuration information.

Optionally, M5 may be equal to the number of precodings included in a preset group of precodings. The first codebook subset information is used to determine, from the group of precodings, the precodings that are allowed to be selected for reporting PMI information by G terminals, and the precodings that are prohibited from being selected for H terminals to report PMI information. The second codebook subset information is used to determine, from the group of precodings, the precodings that are allowed to be selected for reporting the PMI information of the J terminals and the precodings that are forbidden to be selected for reporting the PMI information of the K terminals. That is, the G seventh parameters are the allowed precoding corresponding to the first codebook subset information; the H eighth parameters are the forbidden precoding corresponding to the first codebook subset information; the J ninth parameters are the second code The allowed precoding corresponding to this subset information; the K tenth parameters are the prohibited precoding corresponding to the second codebook subset information.

In an optional embodiment, the CSI report includes fifth CSI measurement information;

The fifth CSI measurement information is obtained on the first reference signal resource and the second reference signal resource in the Z fifth interference measurement resource and reference signal resource groups.

The fifth interference measurement resource is configured by the network device; the fifth interference measurement resource is associated with the reference signal resource group; or the fifth interference measurement resource is associated with the first reference signal resource and the second reference signal resource in the reference signal resource group Signal resources are associated. Z is an integer greater than or equal to 1. The first reference signal resource belongs to the first reference signal resource subset, and the second reference signal resource belongs to the second reference signal resource subset.

The fifth CSI measurement information includes first PMI information and second PMI information. The first PMI information has an associated relationship with one or more seventh parameters among the G seventh parameters; the first PMI information has no associated relationship with any eighth parameter among the H eighth parameters. The second PMI information has an associated relationship with one or more ninth parameters among the J eighth parameters; the second PMI information has no associated relationship with any tenth parameter among the K tenth parameters.

That is to say, the first PMI information in the fifth CSI measurement information has an association relationship with the G precodings that are allowed to be selected, and does not have an association relationship with the H precodings that are forbidden to be selected; the second PMI information in the fifth CSI measurement information is related to One or more of the J precodings that are allowed to be selected have an associated relationship, and are not associated with the K precodings that are forbidden to be selected.

It can be seen that this embodiment uses two codebook subset information to determine two PMI information respectively. Compared with the way of using one codebook subset information to determine two PMI information, the PMI allowed to be selected by the codebook subset restriction can be avoided. Too little will cause invalid or inaccurate CSI feedback.

In another optional embodiment, the CSI report includes sixth CSI measurement information. The sixth CSI measurement information is obtained on the Z sixth interference measurement resources and one reference signal resource in the first reference signal resource subset. The sixth interference measurement resource is configured by the network device. The sixth interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset. Z is an integer greater than or equal to 1. Wherein, the sixth CSI measurement information includes third PMI information. The third PMI information has an associated relationship with one or more seventh parameters among the G seventh parameters; the third PMI information has no associated relationship with any eighth parameter among the H eighth parameters.

and / or,

The CSI report includes seventh CSI measurement information; the seventh CSI measurement information is obtained on the Z seventh interference measurement resources and one reference signal resource in the second reference signal resource subset. The seventh interference measurement resource is configured by the network device. The seventh interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset. Z is an integer greater than or equal to 1. The seventh CSI measurement information includes fourth PMI information. The fourth PMI information has an associated relationship with one or more ninth parameters among the J eighth parameters. The fourth PMI information does not have an associated relationship with any tenth parameter among the K tenth parameters.

It can be seen that in this embodiment, the PMI information corresponding to the single TRP measurement hypothesis in the CSI report can be based on the first codebook subset on the Z sixth interference measurement resources and one reference signal resource in the first reference signal resource subset. The G seventh parameters corresponding to the information determine the reported PMI information. Alternatively, on the Z seventh interference measurement resources and one reference signal resource in the second reference signal resource subset, the reported PMI information may be determined based on the J eighth parameters corresponding to the second codebook subset information. This application is not limited.

In a fifth aspect, the present application further provides a communication device, including a communication unit and a processing unit. The communication device is configured to implement the method described in any one of the first to fourth aspects or any possible implementation manner of any one of the aspects.

In this aspect, the communication unit may also be a transceiver, configured to send and/or receive data in any one of the first to fourth aspects; the processing unit may also be a processor, configured to process the first aspect to the data of any one of the fourth aspects.

In this aspect, the communication device may be a chip or a chip system, the communication unit may be a communication interface, an input and/or output circuit, and the like, and the processing unit may be a processing circuit, a logic circuit, and the like.

In a sixth aspect, the present application provides a chip system, the chip system includes at least one processor for supporting the implementation of the functions involved in any one of the above-mentioned first to fourth aspects, such as, for example, receiving or processing Data and/or information involved in the above methods.

In a possible design, the chip system further includes a memory for storing program instructions and data, and the memory is located inside the processor or outside the processor. The chip system may be composed of chips, or may include chips and other discrete devices.

In a seventh aspect, the present application further provides a communication device, the communication device includes at least one processor and a communication interface, the communication interface is used for sending and/or receiving data, and the at least one processor is used for calling at least one memory A computer program stored in the device, so that the downlink control channel transmission apparatus implements the method described in any one of the first to fourth aspects or any possible implementation manner of any one of the aspects.

In an eighth aspect, the present application further provides a channel state information reporting system, where the channel state information reporting system at least includes a network device and a terminal. Wherein, the network device is used to implement the method described in any possible implementation manner of the second aspect or the fourth aspect, and the terminal is used to implement any possible implementation manner of the first aspect or the third aspect. the described method.

In a ninth aspect, the present application further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program runs on one or more processors, the first aspect is implemented A method as described in any one of the to fourth aspects or any possible implementation of any of the aspects.

In a tenth aspect, an embodiment of the present application discloses a computer program product, which, when the computer program product runs on one or more processors, implements any one of the first to fourth aspects or any one of the aspects. The method described in any of the possible implementations.

Description of drawings

1 is a schematic diagram of a communication system;

2a is a schematic diagram of multi-DCI scheduling provided by an embodiment of the present application;

2b is a schematic diagram of a single DCI scheduling provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of a CSI reporting method 100 provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of a CSI reporting method 200 provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a communication apparatus 500 provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a communication apparatus 600 provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a chip provided by an embodiment of the present application.

Detailed ways

FIG. 1 is a schematic diagram of a wireless communication network 100 applicable to embodiments of the present application. As shown in FIG. 1 , the wireless communication network 100 includes base stations 102-106 and terminal devices 108-122, wherein the base stations 102-106 can pass a backhaul link (such as a straight line between the base stations 102-106). shown), the backhaul link may be a wired backhaul link (eg, fiber optic, copper cable), or a wireless backhaul link (eg, microwave). Terminal devices 108-122 may communicate with corresponding base stations 102-106 through wireless links (as shown by the broken lines between base stations 102-106 and terminal devices 108-122).

The base stations 102-106 generally serve as access devices to provide wireless access services for the terminal devices 108-122, which generally serve as user equipment. Specifically, each base station corresponds to a service coverage area (also known as a cell, as shown in each oval area in Figure 1), and terminal equipment entering this area can communicate with the base station through wireless signals to receive the base station. Wireless access service provided. The service coverage areas of the base stations may overlap, and the terminal equipment in the overlapping area can receive wireless signals from multiple base stations, so these base stations can cooperate with each other to provide services for the terminal equipment.

For example, multiple base stations may use coordinated multipoint (Coordinated multipoint, CoMP) technology to provide services for terminal devices in the above-mentioned overlapping areas. Optionally, the CoMP technology may include non-coherent joint transmission (Non-Coherent joint transmission, NCJT), that is, NCJT is one of the CoMP technologies. For example, as shown in FIG. 1, the service coverage areas of the base station 102 and the base station 104 overlap, and the terminal device 112 is located in the overlapping area, so the terminal device 112 can receive wireless signals from the base station 102 and the base station 104, The base station 102 and the base station 104 may cooperate with each other to provide services for the terminal device 112 . For another example, as shown in FIG. 1 , the service coverage areas of the base station 102, the base station 104 and the base station 106 have a common overlapping area, and the terminal device 120 is located in the overlapping area, so the terminal device 120 can receive information from the base station. The wireless signals of 102 , 104 and 106 , the

base stations

102 , 104 and 106 can cooperate with each other to provide services for the terminal device 120 .

There are two ways for multiple base stations to cooperatively provide services: one is a multi-downlink control information (Downlink control information, DCI) way, as shown in Figure 2a; the other is a single DCI way, as shown in Figure 2b. Take TRP1 and TRP2 cooperate with each other to provide services for terminal equipment as an example. In the multi-DCI mode, as shown in Figure 2a, TRP1 and TRP2 each transmit one DCI and schedule two Physical downlink share channels (PDSCH), such as It carries data (Data) 1 and data 2 and sends them to the terminal equipment respectively. Among them, 1 DCI schedules 1 PDSCH, and DC11 and DCI2 respectively use different downlink control channels to send to the terminal equipment. Correspondingly, data 1 and data 2 are respectively sent to the terminal equipment using different downlink data channels. In the single DCI mode, as shown in Figure 2b, there is only one site in TRP1 and TRP2. For example, TRP1 transmits one DCI and schedules one PDSCH. However, some of the streams/layers in this PDSCH (corresponding to the demodulation reference signal) signal, DMRS) port) is transmitted by TRP1, and another part of the stream/layer (corresponding to part of the DMRS port) is transmitted by TRP2.

Depending on the wireless communication technology used, the base station can be a Transmit Reception Point (TRP) NodeB (NodeB), an evolved NodeB (eNodeB), an Access Point (AP), and the like. In addition, according to the size of the service coverage area provided, base stations can be divided into macro base stations for providing macro cells, micro base stations for providing micro cells, and micro base stations for providing pico cells (Pico cells). cell) and a femto base station for providing femto cells. With the continuous evolution of wireless communication technology, other names may also be adopted for future base stations.

A base station typically includes multiple components, such as, but not limited to, a baseband portion, a radio frequency portion, and an antenna array portion.

The baseband part is used to perform various baseband processing operations, such as, but not limited to, encoding and decoding, modulation and demodulation, precoding, and time-frequency conversion. In a specific implementation process, the baseband part is usually implemented by, for example, but not limited to, a baseband unit (BaseBand Unit, BBU).

The RF section is used to perform various RF processing operations such as, but not limited to, IF processing and filtering. In a specific implementation process, the radio frequency part is usually implemented by, for example, but not limited to, a radio frequency unit (Radio Frequency Unit, RFU).

Antenna arrays can be divided into active antenna arrays and passive antenna arrays, which are responsible for transmitting and receiving signals.

The product form of base station is very rich. For example, during product implementation, the BBU can be integrated with the RFU within the same device, which is connected to the antenna array through cables such as, but not limited to, feeders. The BBU can also be set apart from the RFU, and the two are connected by optical fibers, and communicate through, for example, but not limited to, the Common Public Radio Interface (Common Public Radio Interface, CPRI) protocol. In this case, the RFU is usually called an RRU (Remote Radio Unit), which is connected to the antenna array through a cable. In addition, the RRU can also be integrated with the antenna array. For example, the active antenna unit (Active Antenna Unit, AAU) product currently on the market adopts this structure.

Furthermore, the BBU can be further broken down into multiple parts. For example, the BBU can be further subdivided into a centralized unit (Centralized Unit, CU) and a distributed unit (Distribute Unit, DU) according to the real-time nature of the processed services. The CU is responsible for processing non-real-time protocols and services, and the DU is responsible for processing physical layer protocols and real-time services. Further, some physical layer functions can also be separated from the BBU or DU and integrated in the AAU.

As can be seen from the above, the base station may include multiple parts, and there are multiple different product forms. In this case, the technical solutions described in the embodiments of this application may only involve one or more parts of the base station, or may involve the entire base station. Therefore, the base station in the embodiments of the present application may refer to a base station product that only includes several parts used to implement the technical solutions of the embodiments of the present application, or may refer to the entire base station, where the above-mentioned parts may include, for example, but not limited to, the above One or more of the baseband part, radio frequency part, antenna array, BBU, RRU, RFU, AAU, CU and DU, etc. Further, the technical solutions provided by the embodiments of the present application may only be implemented by corresponding chips in each of the above-mentioned parts. In each part, the technical solutions provided by the embodiments of the present application may involve one chip, or may Multiple chips are involved. It can be seen that the technical solutions provided in the embodiments of the present application may be implemented by the entire base station, or by several parts of the base station, and may also be implemented by one or more chips in these parts, that is, It is implemented by one or more chips in the base station. For example, a technical solution may only be implemented by the part involving baseband processing in the base station. Further, the technical solution may be implemented by the BBU, or by the CU, or by the DU, or by the CU and the DU jointly. Implementation, either by the AAU, or by one or more chips in these devices.

The terminal devices 108-122 may be various wireless communication devices with wireless communication functions, such as but not limited to mobile cellular phones, cordless phones, personal digital assistants (PDAs), smart phones, notebook computers, tablet computers, wireless Data cards, wireless modems (Modulator demodulator, Modem) or wearable devices such as smart watches. With the rise of Internet of Things (IOT) technology and Vehicle-to-everything (V2X) technology, more and more devices that did not have communication functions before, such as but not limited to, household appliances, vehicles, Tool equipment, service equipment and service facilities begin to obtain wireless communication functions by configuring wireless communication units, so that they can access wireless communication networks and accept remote control. Such devices have wireless communication functions because they are equipped with wireless communication units, so they also belong to the category of wireless communication devices. In addition, the terminal devices 108-122 may also be referred to as mobile stations, mobile devices, mobile terminals, wireless terminals, handheld devices, clients, and the like.

The base stations 102-106 and the terminal devices 108-122 can be configured with multiple antennas to support MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) technology. Further, the base stations 102 to 106 and the terminal devices 108 to 122 can support either a single-user MIMO (Single-User MIMO, SU-MIMO) technology or a multi-user MIMO (Multi-User MIMO, MU-MIMO), wherein MU-MIMO can be implemented based on space division multiple access (Space Division Multiple Access, SDMA) technology. Due to the configuration of multiple antennas, the base stations 102 to 106 and the terminal devices 108 to 122 can also flexibly support Single Input Single Output (Single Input Single Output, SISO) technology, Single Input Multiple Output (Single Input Multiple Output, SIMO) and multiple input Single output (Multiple Input Single Output, MISO) technology to achieve various diversity (such as but not limited to transmit diversity and receive diversity) and multiplexing technology, where diversity technology may include, for example, but not limited to Transmit Diversity (TD) technology and receive diversity (Receive Diversity, RD) technology, the multiplexing technology may be a spatial multiplexing (Spatial Multiplexing) technology. Moreover, the above-mentioned various technologies may also include multiple implementation solutions, for example, the transmit diversity technology may include Transmit Diversity.

In addition, the base stations 102-106 and the terminal devices 108-122 may communicate using various wireless communication technologies.

With the continuous development of communication theory and practice, more and more wireless communication technologies have emerged and gradually matured. The above wireless communication technologies include but are not limited to WiFi, Worldwide Interoperability for Microwave Access (WiMAX), 4th-generation (4G) systems, and 5th-generation mobile communications as defined by the 802.11 series of standards. (5th-generation, 5G) system, sixth-generation mobile communication (6th-generation, 6G) system, and with the continuous development of communication technologies, the technical solutions in the embodiments of the present application can also be used in subsequent evolved communication systems, such as the seventh Generation mobile communication (7th-generation, 7G) system and so on. Unless otherwise specified, the technical solutions provided in the embodiments of the present application can be applied to the above-mentioned various wireless communication technologies and wireless communication systems. Also, the terms "system" and "network" are interchangeable.

It should be noted that the wireless communication network 100 shown in FIG. 1 is only used for example, and is not used to limit the technical solution of the present application. Those skilled in the art should understand that in a specific implementation process, the wireless communication network 100 may also include other devices, and the number of base stations and terminal devices may also be configured according to specific needs.

In order to better understand the embodiments of the present application, before introducing the embodiments of the present application, the following points are made.

First, in this application, "for indicating" may include direct indicating, indirect indicating and joint indicating combined with other information. When describing a certain indication information for indicating A, the indication information may directly indicate A or indirectly indicate A, but it does not mean that A must be carried in the indication information.

The information indicated by the indication information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the information to be indicated. Indicating the index of information, etc. The information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be implemented by means of a pre-agreed (for example, a protocol stipulated) arrangement order of various information, so as to reduce the indication overhead to a certain extent. At the same time, the common part of each piece of information can also be identified and indicated uniformly, so as to reduce the indication overhead caused by indicating the same information separately. For example, those skilled in the art should understand that a precoding matrix is composed of precoding vectors, and each precoding vector in the precoding matrix may have the same parts in terms of composition or other properties.

In addition, the specific indication manner may also be other various indication manners, such as, but not limited to, the above indication manner and various combinations thereof. The specific details of various indication modes will not be repeated here. It can be seen from the above that, for example, when multiple pieces of information of the same type need to be indicated, different information may be indicated in different manners. In the specific implementation process, the required indication mode can be selected according to specific needs. The selected indication mode is not limited in this embodiment of the present application. In this way, the indication mode involved in the embodiment of the present application should be understood as covering the ability to make the indication to be indicated. Various methods for the party to learn the information to be indicated.

The information to be indicated may be sent together as a whole, or may be divided into multiple sub-information and sent separately, and the transmission periods and/or transmission timings of these sub-information may be the same or different. The specific sending method is not limited in this application. The sending period and/or sending timing of these sub-information may be predefined, for example, predefined according to a protocol, or configured by the transmitting end device by sending configuration information to the receiving end device. Wherein, the configuration information may include, for example, but not limited to, one or a combination of at least two of radio resource control signaling, medium access control (medium access control, MAC) layer signaling, and physical layer signaling. Among them, the radio resource control signaling, such as packet radio resource control (radio resource control, RRC) signaling; MAC layer signaling, for example, includes MAC control element (control element, CE); physical layer signaling, for example, includes downlink control information (downlink control information). information, DCI).

Second, in the present application, the first, the second, and various numeral numbers are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application. For example, different indication information, different parameters, etc. are distinguished.

Third, "pre-defined" or "pre-configured" can be achieved by pre-saving corresponding codes, forms or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The specific implementation manner is not limited. Wherein, "saving" may refer to saving in one or more memories. The one or more memories may be provided separately, or may be integrated in an encoder or decoder, a processor, or a communication device. The one or more memories may also be partially provided separately and partially integrated in the decoder, processor, or communication device. The type of memory may be any form of storage medium, which is not limited in this application.

Fourth, the "protocol" involved in the embodiments of this application may refer to a standard protocol in the communication field, for example, may include LTE protocol, new radio (NR) protocol, and related protocols applied in future communication systems. The application is not limited.

Fifth, "at least one" means one or more, and "plurality" means two or more. "And/or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a) of a, b and c can represent: a, or, b, or, c, or, a and b, or, a and c, or, b and c, or, a , b and c. Where a, b and c can be single or multiple respectively.

Sixth, in the embodiments of this application, descriptions such as "when", "in the case of", "if", and "if" all refer to a device (such as a terminal device or network equipment) will perform corresponding processing, which is not limited time, and also does not require equipment (eg, terminal equipment or network equipment) to have judgment actions during implementation, nor does it mean that there are other limitations.

To facilitate understanding of the embodiments of the present application, the following briefly introduces terms involved in the embodiments of the present application.

1. Reference signal

A channel state sounding signal can be transmitted between the network device and the terminal to obtain channel state information (Channel State Information, CSI) between the network device and the terminal. Wherein, the channel state sounding signal may include, but is not limited to, reference signals, for example, Channel State Information Reference Signal (CSI-RS), Non-Zero Power Channel State Information Reference Signal (Non-Zero Power Channel State Information Reference) Signal, NZP CSI-RS), etc. Correspondingly, for different reference signals, the network device may configure corresponding reference signal resources, so that the terminal receives the corresponding reference signals to estimate the channel state information.

For ease of description, the reference signal is used as an example for description. Correspondingly, the network device may configure reference signal resources for the terminal.

2. Reference signal resources, interference measurement resources

To support CSI measurement, the network device needs to configure reference signal resources for the terminal. For example, the network device sends first configuration information, where the first configuration information may be CSI report configuration information, the first configuration information is associated with configuration information of reference signal resources, and the configuration information of the reference signal resources configures one or more reference signal resources Set, the network device sends indication information through signaling, such as MAC-CE signaling; the terminal device determines a reference signal resource set from multiple reference signal resource sets according to the indication information.

It should be noted that, in an optional implementation manner, the first configuration information is sent to the terminal through RRC signaling. Through the above configuration process, the network device can collect as many reference signal resources as possible that may need to be measured at one time. It is configured to the terminal to indicate a set of reference signal resources that needs to be measured recently through MAC-CE signaling. Therefore, the RRC reconfiguration can be greatly reduced, thereby reducing the large scheduling interruption delay caused by the RRC reconfiguration.

The determined reference signal resource set includes K reference signal resources, where K is an integer greater than or equal to 2. The configuration information of the reference signal resources can be used by the terminal device to determine N reference signal resource groups, where N is an integer greater than or equal to 1, wherein each reference signal resource group includes a plurality of reference signal resources, and each reference signal resource group includes The multiple reference signal resources of all belong to the same reference signal resource set. The reference signal resource may be a non-zero power channel state information reference signal resource (non-zero power channel state information-reference signal resource, NZP CSI-RS resource). The reference signal resources are resources used for channel measurement.

The configuration information of the reference signal resources can also be associated with an interference measurement resource set, the interference measurement resource set contains multiple interference measurement resources, and the interference measurement resources can be non-zero power channel state information reference signal resources (non-zero power channel state information-reference signal resource, NZP CSI-RS resource), or it may be a channel state information-interference measurement resource (channel state information-interference measurement reosurce, CSI-IM resource).

The terminal equipment can obtain multi-user interference based on NZP CSI-RS resource; or can obtain inter-cell interference based on CSI-IM resource. Each reference signal resource has an associated relationship with one interference measurement resource in one interference measurement resource set, and each reference signal resource group has an associated relationship with one or two interference measurement resources in one measurement resource set.

In an optional implementation manner, the terminal device may receive indication information from the network device, where the indication information indicates the reference signal resources and reference signal resource groups in the reference signal resource set, respectively, and the interference in the interference measurement resource set. Measure the relationship of resources. In another optional implementation manner, the terminal device determines the association relationship between the reference signal resources and the reference signal resource groups in the reference signal resource set and the interference measurement resources in the interference measurement resource set, respectively, according to a pre-defined rule.

The following is an example of determining the relationship between the reference signal resource, the reference signal resource group and the interference measurement resource according to a predefined rule. It is assumed that the reference signal resource set includes 2 reference signal resources and 2 reference signal resource groups (wherein the reference signal resource group may be explicitly included or implicitly included); the interference measurement resource set associated with the reference signal resource set includes 4 interference measurement resources. which is:

Reference signal resource set: {reference signal resource 1, reference signal resource 2, reference signal resource group 1, reference signal resource group 2};

Interference measurement resource set: {interference measurement resource 1, interference measurement resource 2, interference measurement resource 3, interference measurement resource 4};

In an optional implementation manner, the predefined rule may be that the reference signal resources in the reference signal resource set are associated with a corresponding number of interference measurement resources in the interference measurement resource set in order, and the reference signal resources in the reference signal resource set are associated in order. The resource group is associated with one interference measurement resource in sequence with the remaining interference measurement resources in the interference measurement resource set. According to the above rules, the reference signal resource/reference signal resource group and the interference measurement resource with an associated relationship can be expressed as:

{reference signal resource 1, interference measurement resource 1}, {reference signal resource 2, interference measurement resource 2}, {reference signal resource group 1, interference measurement resource 3}, {reference signal resource group 2, interference measurement resource 4}. Wherein, the reference signal resource/reference signal resource group in the curly brackets has an associated relationship with the interference measurement resource.

In another optional implementation manner, the pre-defined rule may be that the reference signal resources in the reference signal resource set are associated with a corresponding number of interference measurement resources in the interference measurement resource set in order, and the reference signal resources in the reference signal resource set are related in order. Each reference signal resource in the signal resource group is associated with one interference measurement resource in sequence with the remaining interference measurement resources in the interference measurement resource set. Multiple (take two as an example) interference measurement resources associated with multiple (take two as an example) reference signal resources in the same reference signal resource group have the same identifier of the interference measurement resource, that is, the same interference measurement resource. According to the above rules, the reference signal resource/reference signal resource group and the interference measurement resource with an associated relationship can be expressed as:

{reference signal resource 1, interference measurement resource 1}, {reference signal resource 2, interference measurement resource 2}, {reference signal resource group 1, interference measurement resource 3, interference measurement resource 3}, {reference signal resource group 2, interference Measurement resource 4, interference measurement resource 4}. Wherein, the reference signal resource/reference signal resource group in the curly brackets has an associated relationship with the interference measurement resource.

Alternatively, the configuration information of the reference signal resource may also be associated with two other sets of interference measurement resources, the first set of interference measurement resources includes multiple channel state information interference measurement resources, and the second set of interference measurement resources includes multiple non-zero interference measurement resources Power Channel State Information Reference Signal Resource. Each of the reference signal resources has an associated relationship with one interference measurement resource in the first interference measurement resource set, and has an associated relationship with one interference measurement resource in the second interference measurement resource set; and Each of the reference signal resource groups has an associated relationship with one or two interference measurement resources in the first interference measurement resource set, and interferes with one or two interference measurement resources in the second interference measurement resource set Measurement resources are associated.

Wherein, the CSI under the single TRP measurement assumption is calculated on the reference signal resource and its associated interference measurement resource; the CSI under the NCJT measurement assumption is the multiple reference signal resources included in the reference signal resource group. and its associated interference measurement resource.

In this application, there are two types of channel state information (CSI) measurements. One is based on a single TRP measurement assumption, that is, the terminal assumes that subsequent data transmissions come from one TRP; the other is based on multiple TRP measurements. The TRP measurement is assumed to be measured, that is, the terminal assumes that subsequent data transmissions come from multiple TRPs.

Different reference signal resources in the reference signal resource group are associated with different TRPs, which may be: from the perspective of the terminal, multiple reference signal resources in the same reference signal resource group are associated with multiple different transmission configuration indication states (Transmission configuration indicator state, TCI state); from the perspective of the network device, the network device can configure different TCIs for multiple reference signal resources in the same reference signal resource group. Wherein, the TCI state includes Quasi co-location (QCL) information of the reference signal resource, and the terminal can receive the reference signal sent by the corresponding TRP on the reference signal resource according to the QCL information included in the TCI state.

Optionally, the reference signal resource group may be referred to as a channel measurement resource pair (channel measurement resource pair, CMR pair). Reference signal resources may include NZP CSI-RS resources, CSI-RS resources, and the like. The multi-TRP measurement hypothesis may be a non-coherent joint transmission (NCJT) measurement hypothesis.

3. CSI report

In this application, the first configuration information can also configure information that the CSI report reported by the terminal includes two options:

Option 1: CSI information of X single-TRP measurement assumptions and CSI information of 1 multi-TRP measurement assumption;

Option 2: CSI information for a single TRP measurement hypothesis, or CSI information for a multi-TRP measurement hypothesis.

Wherein, the CSI under the single TRP measurement assumption is calculated from one reference signal resource in the above-mentioned reference signal resource set and its associated interference measurement resource.

The CSI under the NCJT measurement assumption is calculated from multiple reference signal resources included in one of the determined N reference signal resource groups and its associated interference measurement resources.

Optionally, the X is an integer greater than or equal to 0, and the X can be configured by the above-mentioned first configuration information, for example, the first configuration information includes the value of the X. Optionally, the X can be an integer such as 0, 1 or 2.

The CSI information assumed by the NCJT measurement may include multiple parameters, such as 1 channel state information-reference signal resource indicator (CRI) information and 2 rank indicator (RI) information. Optionally, which parameters are included in the first type of CSI information can be configured by the network device. For example, the first type of CSI information may further include one channel quality indicator (CQI, Channel quality indicator) information, two precoding matrix indicator (PMI, Precoding matrix indicator) information, and two layer indicators (layer indicator, LI) information, etc.

Wherein, the CRI information is used to indicate an RS resource group. CQI information is used to indicate channel quality. PMI information is used to indicate precoding matrix information. The LI information is used to indicate layer information. Among them, in addition to the CRI information itself, other parameters such as 2 RI information, 1 CQI information, 2 PMI information, and 2 LI information are estimated by the terminal on the two RS resources in the RS resource group indicated by the CRI information. acquired.

The CSI information assumed for a single TRP measurement may include multiple parameters, such as one channel state information-reference signal resource indicator (channel state information-reference signal resource indicator, CRI) information and one rank indicator (rank indicator, RI) information. Wherein, the CRI information is used to indicate one RS resource, which is different from indicating one RS resource group in the above-mentioned first type of CSI information. Optionally, which parameters are included in the second type of CSI information can be configured by the network device. For example, the second type of CSI information may further include one channel quality indicator (CQI, Channel quality indicator) information, one precoding matrix indicator (PMI, Precoding matrix indicator) information, and one layer indicator (layer indicator, LI) information, etc.

4. Submission of CSI report

In this application, the terminal adopts a two-level channel state information reporting structure, that is, the parameters in the CSI report are sent to the network device through two parts. The first part of the CSI report may be referred to as channel state information part 1 (channel state information part 1, CSI Part 1), and the second part of the CSI report may be referred to as CSI Part 2.

In addition to the CRI and RI, the first part of the CSI report may also include the CQI of the first transport block, one or more of the number of non-zero amplitude coefficients, and the like. Which parameters are contained in the first part of the CSI report are configured by the network device. For example, when the network device configures the terminal to perform CSI measurement according to the Type I codebook, the first part of the CSI report will not include the number of non-zero amplitude coefficients. Other parameters in the CSI report are included in the second part of the CSI report. The first part of the CSI report and the second part of the CSI report are encoded and transmitted separately.

Wherein, the load of the first part of the CSI report can be predetermined; the load of the second part of the CSI report can be changed and is determined by the parameters in the first part of the CSI report. For the CSI report reported by the terminal, the network device may determine the load of the first part of the CSI report according to the first configuration information; further, receive the load of the second part of the CSI report according to the load of the first part of the CSI report. It can be seen that the correct reception of the first part of the CSI report is the key for the network device to receive the entire CSI report.

Taking the first part of the CSI report including CRI information, RI information, the wideband CQI information of the first transport block and the corresponding subband CQI information as an example, a brief description of how the load of the first part of the CSI report is predetermined is briefly described:

1) The load of the CRI information in the first part of the CSI report is determined according to the number of reference signal resources in the reference signal resource set described above and the number N of reference signal resource groups determined from the reference signal resource set.

2) The payload of the wideband CQI information of the first transport block in the first part of the CSI report is predefined by the protocol and is a preset value, for example, 4 bits.

3) The load of the subband CQI information of the first transport block in the first part of the CSI report is determined by the number of subbands and the number of bits in each subband. The number of bits of each subband is a preset value, for example, the protocol pre-defined as 2 bits; the number of subbands may be preconfigured, or may be determined according to the CSI report configuration information.

4) The load of the RI information in the first part of the CSI report is related to the measurement hypothesis type (eg single TRP measurement hypothesis, multi-TRP measurement hypothesis). For example, the first type of CSI information is obtained based on two TRP measurement assumptions, that is, the first type of CSI information is obtained respectively on two RS resources in an associated reference signal resource group, then the RI information in the first part of the CSI report Corresponding to the two RI values, one RI value is estimated on one RS resource among the two RS resources, and the other RI value is estimated on the other RS resource among the two RS resources. The second type of CSI information is obtained based on a single TRP measurement assumption, that is, the second type of CSI information is obtained on an associated reference signal resource, then the RI information in the first part of the CSI report corresponds to an RI value.

In this application, for the convenience of description, the information belonging to the first part of the CSI report in the CSI information of the multi-TRP measurement hypothesis is called the first type of CSI information; the information belonging to the first part of the CSI report in the CSI information of the single TRP hypothesis is called the first type of CSI information. Type II CSI information. That is, the network device can configure the first part of the CSI report reported by the terminal to include X second type CSI information and one first type CSI information; or, the network device can configure the first part of the CSI report reported by the terminal to include one The second type of CSI information or one first type of CSI information. In addition, the embodiments of the present application are described by taking an example that one reference signal resource group includes two reference signal resources.

For example, taking the first part of the CSI report including CRI, RI and CQI of the first transport block as an example, the first type of CSI information and the second type of CSI information are different as shown in Table 1, that is, the latter needs to include Two rank indications.

Table 1: CSI parameters included in the first part of CSI

第二类CSI信息The second type of CSI information	第一类CSI信息The first type of CSI information
1个CRI1 CRI	1个CRI1 CRI
1个RI1 RI	2个RI2 RIs

CQI of the first transport block

Currently, in the CSI measurement and reporting of a single TRP assumption, for the RI information in the first part of the CSI report, the network device can set the range of RI values that the terminal is allowed to choose to report, that is, limit the range of the terminal to report RI. For example, the network device may use high-layer parameters to limit the range of the RI reported by the terminal in the first part of the CSI report. This technique is called Rank Indication Restriction (RI-Restriction). For example, the rank indication restriction information may limit the range that the terminal is allowed to choose to report RI to be {1, 2, 3, 4}, then, the first part of the CSI report can only include one value of {1, 2, 3, 4} . It can be seen that this kind of restriction can reduce the complexity of the terminal when calculating CSI, and make the CSI calculation more effective. For example, for a terminal with only 2-stream reception capability, in subsequent scheduling, it is impossible for the network device to schedule data transmission with more than 2 streams for the terminal, so the rank value corresponding to the RI information in the CSI report reported by the terminal is greater than 2 CSI information does not help subsequent scheduling, but the calculation of these CSI information wastes the power consumption and computing resources of the terminal. Therefore, the rank indication restriction information can limit the range that the terminal is allowed to choose to report RI to {1, 2}, then the rank value corresponding to the RI information reported by the terminal will be less than or equal to 2. Correspondingly, other CSI information is also based on the rank value less than or equal to 2. It is obtained when it is equal to 2, thereby avoiding the waste of terminal power consumption and computing resources.

In the CSI measurement and reporting of the single TRP assumption, for the PMI information in the CSI report, in order to reduce the interference of neighboring cells, the network device can also set the range of the PMI that allows the terminal to select the reported PMI through high-level parameters, that is, limit some PMIs in the CSI report. usage of. This technique may be referred to as Codebook subset restriction (CBSR). That is to say, for some PMIs, when the network device uses the transmission parameters determined based on these PMIs, when transmitting data, it will cause strong interference to neighboring cells. That is to say, although these precodings are optimal for the terminal, in order to avoid causing strong interference to neighboring cells, the network equipment will not use these precodings to determine transmission parameters.

Therefore, in order to solve the above-mentioned problems in CSI measurement reporting of multiple TRP measurement assumptions, how to perform rank indication restriction and/or codebook subset restriction in CSI reporting of multiple TRP measurement assumptions becomes an urgent problem to be solved.

The present application provides a CSI reporting method 100. In the CSI reporting method 100, the first configuration information is used to indicate first rank restriction indication information and second rank restriction indication information. The first rank restriction indication information is used to determine the RI information in the first type of CSI information, and the second rank restriction indication information is used to determine the RI information in the second type of CSI information. Further, the terminal may send the first part of the CSI report to the network device, where the first part of the CSI report includes the first type of CSI information or the second type of information. It can be seen that the present application can use two rank restriction indication information to limit the RI information corresponding to the multiple TRP measurement assumptions and the single TRP measurement assumptions respectively, thereby reducing the power consumption of the terminal and the consumption of computing resources.

In addition, the CSI reporting method 100 takes into account that the load size of the RI information in the first part of the CSI report depends on the measurement assumption (ie, 1 RI information, or 2 RI information), and considers that for the above option 2, the CSI report Whether the first part of the CSI includes one second type of CSI information or one first type of CSI information is decided by the terminal according to the measurement result. That is to say, when the network device configures the terminal to report the first part of the CSI report according to option 2, the terminal may report the CSI information under the assumption of single TRP measurement (ie, the second type of CSI information), or may report the assumption of multiple TRP measurements. The CSI information (ie, the first type of CSI information) completely depends on the measurement result of the terminal.

Therefore, in order to ensure that the network device can correctly receive the first part of the CSI report and reduce the reporting overhead, it is necessary to solve the problem that the load of the RI information in the first part of the CSI report is affected by the difference in the number of RI information in different measurement assumptions. Part of the problem of load ambiguity and load multiplication, in the CSI reporting method 100, two rank restriction indication information methods are used (that is, the first rank restriction indication information is used to determine the RI information in the first type of CSI information, the second The rank restriction indication information is used to determine the RI information in the second type of CSI information), compared with the manner in which one rank restriction indication information is used to determine one or two RI information, the CSI reporting method 100 is beneficial to avoid that the rank value is only There is an influence proportional to the number of RI information in the first part of the CSI report caused by the same selection range, which is beneficial to ensure the consistency of the RI information load in the first part of the CSI report under different measurement assumptions. Therefore, it is beneficial to further reduce the complexity and time delay of processing the CSI information on the network device side.

It should be noted that the CSI information reported by the terminal corresponds to different measurement assumptions, and under different measurement assumptions, the load of the first part of the CSI report may be uncertain due to the different number of reported RIs, and the method described in this application can be used. CSI reporting method to resolve. In this application, a scenario that includes both a single TRP measurement assumption and an NCJT measurement assumption is used as an example for description.

The present application also provides a CSI reporting method 200. In the CSI reporting method 200, the second configuration information is used to indicate the first codebook subset information and the second codebook subset information; the first codebook subset information is associated with a first reference signal resource subset; the second codebook subset information is associated with a second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively associated with different transmission configuration indications state. It can be seen that in this application, the two PMIs in the CSI report corresponding to the assumption of multi-TRP measurement can be selected from the two codebook subset information respectively, so as to avoid the PMI reported by the terminal, causing the signal transmitted by the network device to cause strong interference to neighboring cells. The problem.

In addition, the CSI reporting method 200 takes into account that different TRPs are located in different geographic locations, and it is less likely that the PMIs corresponding to the strong interference to neighboring cells are the same, and the method of using two codebook subset information (that is, the first The codebook subset information is used for the selection of the PMI on the reference signal resource corresponding to one TRP, and the second codebook subset information is used for the selection of the PMI on the reference signal resource corresponding to the other TRP). Compared with the manner in which the information is used for the PMI on the reference signal resources corresponding to the two TRPs, the problem of invalid or inaccurate CSI feedback caused by too few PMIs allowed to be selected by the codebook subset restriction can be avoided.

Optionally, the CSI reporting method 100 and the CSI reporting method 200 may be implemented relatively independently, or may be used in combination to solve the above-mentioned problem in the assumption of multiple TRP measurements, which is not limited in this application.

Optionally, the first configuration information and the second configuration information may be the same configuration information, such as CSI report configuration CSI-ReportConfig and other high-level parameters. The first configuration information and the second configuration information may also be different configuration information, which is not limited in this application.

In addition, the network device described in the embodiments of this application may be a TRP in single TRP transmission, one of two TRPs in cooperative transmission, or may be other network-side devices different from the two TRPs. This application does not Do limit. For the convenience of explanation, this paper mainly describes the case of two TRPs in the case of coordinated transmission of two TRPs, that is, the assumption of multi-TRP measurement. For three or more TRP cooperative transmissions, that is, in the case of three or more TRP measurement assumptions, a solution similar to this application can be adopted, and the differences will be described in the following embodiments, and the same or similar ones are not Repeat.

The present application will be further elaborated below with reference to the accompanying drawings.

Please refer to FIG. 3 , which is a schematic flowchart of a CSI reporting method 100 provided by an embodiment of the present application. As shown in FIG. 3 , the CSI reporting method 100 may include, but is not limited to, the following steps:

S101. The network device sends first configuration information;

S102. The terminal receives the first configuration information;

Optionally, the first configuration information may not only be actively sent by the network device, but also be actively acquired by the terminal, etc., which is not limited in this application.

The first configuration information is used to indicate the first rank restriction indication information and the second rank restriction indication information. The first rank restriction indication information is used to acquire RI information in the first type of CSI information; the second rank restriction indication information is used to acquire RI information in the second type of CSI information.

The first configuration information may directly indicate the first rank restriction indication information and the second rank restriction indication information, or may indirectly indicate the first rank restriction indication information and the second rank restriction indication information, and may also be combined with other configuration information or signaling to indicate The first rank restriction indication information and the second rank restriction indication information are not limited in this application. For example, an indirect way may be: the first configuration information may include codebook configuration information; the codebook configuration information includes rank restriction information; the rank restriction information determines the first rank restriction indication information and the second rank restriction indication information .

The first type of CSI information has an associated relationship with a reference signal resource group, that is, the first type of CSI information is obtained by measurement based on multiple TRP measurement assumptions. The reference signal resource group is one of one or more reference signal resource groups determined from the reference signal resource set. Wherein, the reference signal resource set includes K reference signal resources. K is an integer greater than or equal to 2. Each reference signal resource group includes M reference signal resources, where M is an integer greater than or equal to 2. The value of M is related to the number of TRPs participating in cooperative transmission. Optionally, M is determined by the network device, and the terminal can determine the corresponding M reference signal resource subsets through the configuration information of the reference signal resources, and then select one RS resource from each of the M reference signal resource subsets to obtain one or more RS resources. reference signal resource groups. Optionally, when the maximum number of TRPs participating in cooperative transmission is 2, M may be equal to 2.

The second type of CSI information has an associated relationship with one reference signal resource in the K reference signal resources, that is, the second type of CSI information is obtained through measurement based on a single TRP measurement assumption. Specifically, for the related content of the first type of CSI information and the second type of CSI information, reference may be made to the foregoing description, which will not be described in detail here.

In an optional implementation manner, the complexity of CSI measurement of the terminal may be reduced by limiting the number of reference signal resources. The method further includes: the terminal determines S reference signal resources from the reference signal resource set, where the S is an integer greater than or equal to 1 and less than the K. Wherein, the second type of CSI information has an associated relationship with one reference signal resource in the S reference signal resources. That is to say, the terminal only needs to perform CSI measurement on the S reference signal resources and their associated interference measurement resources to obtain the second type of CSI information, and does not need other reference signal resources (except the determined S reference signal resources) in the reference signal resource set. CSI measurement is performed on other than reference signal resources).

S103, the terminal sends a CSI report to the network device;

S104, the network device receives the CSI report.

The CSI report includes the first type of CSI information or the second type of CSI information.

It can be seen that the CSI reporting method can not only solve the problem of reducing the power consumption of the terminal and the consumption of computing resources, but also help to ensure the consistency of the RI information load in the first part of the CSI report under different measurement assumptions, so that the load of the first part of the CSI report report is fixed. . Therefore, it is beneficial to further reduce the complexity and time delay of processing the CSI information on the network device side.

For example, as shown in Table 1, under the assumption of single TRP measurement and the assumption of multiple TRP measurement, the difference between the parameters included in the first part of the CSI report is that under the assumption of multiple TRP measurement, the terminal will additionally report an RI value. The bit length required for each RI value is determined by the number of RI values allowed to be reported, n _RI , which is equal to

Therefore, if the range of RI values allowed to be reported corresponding to the two measurement assumptions is exactly the same, then, for the single TRP measurement assumption, the load of the RI information in the first part of the CSI report is

For multiple TRP measurement assumptions, the load of RI information in the first part of the CSI report is

It can be seen that the difference in the number of RI information in different measurement assumptions will lead to the problem that the load of the first part of the CSI report is ambiguous and the load increases exponentially.

However, in this application, the range of RI values allowed to be reported corresponding to different measurement assumptions is obtained based on the first rank restriction indication information and the second rank restriction indication information, respectively.

For example, the number of RI values allowed to be reported corresponding to the assumption of multiple TRP measurements is n _RI1 , and the number of RI values allowed to be reported corresponding to the assumption of single TRP measurement is n _RI2 . Then, for the single TRP measurement assumption, the load of RI information in the first part of the CSI report is

For the multi-TRP measurement assumption, the load of the RI information in the first part of the CSI report is: when the two reported RI values correspond to two independent fields (method 1), then the corresponding load is

Or 2 RI values jointly correspond to 1 field (mode 2), then the corresponding load

It can be seen that the loads of RI information in different measurement assumptions are

or

In order to keep the load of RI information consistent or not multiplied under different measurement assumptions, when mode 1 is adopted, it is only necessary to make

equal

When the second method is adopted, it is only necessary to use

equal

That's it.

Therefore, the present application can not only solve the problem of reducing the power consumption of the terminal and the consumption of computing resources, but also help to ensure the consistency of the RI information load in the first part of the CSI report under different measurement assumptions. Therefore, it is beneficial to further reduce the complexity and time delay of processing the CSI information on the network device side.

Some optional implementations in which the first rank restriction indication information is used to obtain the first type of CSI information in the CSI reporting method 100 will be described below, and some of the second rank restriction indication information is used to obtain the second type of CSI information. Alternative embodiments are described.

Embodiment 1.1, the first rank restriction indication information is used to determine A first parameters and/or B second parameters, wherein the A and the B are respectively integers greater than or equal to 1, and the A and the The sum of the B is equal to M1; the M1 is an integer greater than one.

The first parameter is the RI value that the terminal is allowed to choose to report, and the second parameter is the RI value that the terminal is prohibited from choosing to report. In this way, the terminal can determine and report the RI information in the first type of CSI information from the A first parameters.

In one case, the first rank restriction indication information is used to determine the A first parameters, so that the terminal can obtain the RI value that is allowed to be selected and reported. In another case, the first rank restriction indication information is used to determine B second parameters. In this way, the terminal can obtain RI values that are prohibited from being selected for reporting, and thus avoid selecting B second parameters when reporting the first type of CSI information. any of the. In yet another case, the first rank restriction indication information is used to determine A first parameters and B second parameters. In this way, the terminal can learn the RI values that are allowed to be selected for reporting, and the RI values that are prohibited from being selected for reporting.

Taking the above-mentioned first rank restriction indication information for determining A first parameters and B second parameters as an example, an implementation manner of the first rank restriction indication information is described.

For example, the first rank restriction indication information is an 8-bit long bit sequence, such as r ₇ ,r ₆ ,...,r _i ,...,r ₁ ,r ₀ . From right to left, that is, when the i-th least significant bit is 1, i+1 is the RI value that is allowed to be reported; when the i-th low-significant bit is 0, i+1 is the RI value that is prohibited from being reported. It can be seen that the first rank restriction indication information indicates one RI value set, and the RI value set includes A first parameters and B second parameters. For example, when r ₀ =0, RI=1 is the RI value that is prohibited from being selected and reported, and is one of the B second parameters; when r ₂ =1, RI=3 is the RI value that is allowed to be selected and reported, and it is One of the A first parameters. In addition, in this example, the maximum RI value in the set of RI values may be 8.

For another example, the first rank restriction indication information is a 4-bit long bit sequence. Taking the above rule as an example, then the maximum RI value in the set of RI values indicated by the first rank restriction indication information is 4.

Optionally, if the maximum number of streams received by each terminal is 8, then for the multi-TRP measurement assumption, the RI values selected for the two TRPs respectively will not exceed 4. Therefore, optionally, M1 may be equal to 4, so that the number of data streams jointly sent by the two TRPs does not exceed the maximum number of streams received by the terminal.

The value of M1 determines the maximum candidate value of the RI value, and the receiving capability of the terminal can be 4 streams or 8 streams. Therefore, the value of M1 is equal to 4 or 8, that is, the maximum candidate value of the RI value is 4 or 8. 8. The first parameter has an associated relationship with the second parameter. For example, the set of A first parameters is a subset of the set of {1,2,3,4...M1}, and the set of B second parameters is { A subset of the set of 1,2,3,4...M1}, and the set of B second parameters is the complement of the set of A first parameters, or the set of B second parameters and A The intersection of the sets consisting of the first parameter is the empty set.

In addition, in this embodiment, in the first part of the CSI report corresponding to the multi-TRP measurement hypothesis, the RI information reported by the terminal may correspond to two RI values, and these two RI values are both indicated by the above-mentioned first rank restriction indication information An RI value allowed to be reported in an RI value set, but not any RI value other than the RI value set.

In addition, for the case where the first rank restriction indication information is used to determine the A first parameters and the B second parameters, the first type of CSI information in the CSI report may include the first CSI measurement information. The first CSI measurement information is obtained on multiple reference signal resources (eg, two reference signal resources) in the reference signal resource group associated with the Z first interference measurement resources and the first type of CSI information. The Z is an integer greater than or equal to 1.

The first interference measurement resource is configured by the network device; the first interference measurement resource is associated with multiple reference signal resources in the reference signal resource group associated with the first type of CSI information.

Optionally, the first CSI measurement information includes rank indication RI information; the RI information is associated with two first RI values, and each first RI value is one of the A first parameters; and each first RI value is one of the A first parameters. One RI value is not equal to any one of the B second parameters. Therefore, it is beneficial to prevent the RI reported by the terminal from being unavailable, and also wastes the power consumption and computing resources required for the calculation of the corresponding CSI information.

Optionally, the first type of CSI information may further include first CRI information. The first CRI information is used to indicate a reference signal resource group, that is, a reference signal resource group associated with the first type of CSI information, and can further inform the network device that the first CSI measurement information is based on multiple reference signals in the reference signal resource group obtained from resources. Optionally, the first CSI measurement information further includes one or more of PMI information, CQI information, and LI information.

Embodiment 1.2, the first rank restriction indication information is not only used to determine A first parameters and/or B second parameters, but also the first rank restriction indication information is also used to determine C third parameters and/or D third parameters Fourth parameter.

That is, the first rank restriction indication information may be used to determine two sets of RI values. For example, a first RI value set and a second RI value set, wherein the first RI value set includes A first parameters and/or B second parameters; the second RI value set includes C third parameters and/or or the D fourth parameter.

Wherein, "and/or" indicates that each RI value set determined may not include RI values that are prohibited from being selected for reporting, may not include RI values that are allowed to be selected for reporting, or both.

Among them, A and B are respectively integers greater than or equal to 1, and the sum of A and B is equal to M1; in addition, C and D are respectively integers greater than or equal to 1, and the sum of C and D is equal to M2. where M2 is an integer greater than 1. Optionally, the M2 may be equal to or not equal to M1. Optionally, the M2 may be equal to 4, so that the number of data streams jointly sent by the two TRPs does not exceed the maximum number of streams received by the terminal.

Optionally, M2 may be equal to 8, in this way, this embodiment may have better expansibility and compatibility.

Similarly, similar to M1, the value of M2 determines the maximum candidate value of RI value, and the receiving capability of the terminal can be 4 streams or 8 streams. Therefore, the value of M2 is equal to 4 or 8, that is, the maximum candidate value of RI value. Takes the value 4 or 8.

In addition, the third parameter has an associated relationship with the fourth parameter. For example, the set composed of C third parameters is a subset of the set {1,2,3,4...M2}, and the set composed of D fourth parameters is A subset of the set {1,2,3,4...M2}, and the set of D fourth parameters is the complement of the set of C third parameters, or the set of D fourth parameters and C The intersection between sets consisting of the third parameter is the empty set.

The difference between this Embodiment 1.2 and the above-mentioned Embodiment 1.1 is that in this Embodiment 1.2, in the first part of the CSI report corresponding to the multi-TRP measurement hypothesis, the two RI values corresponding to the RI information reported by the terminal belong to the above two RI values, respectively. A set of RI values. That is, in this embodiment, the two RI values corresponding to the RI information in the first type of CSI information are one of the A first parameters and one of the C third parameters, respectively. For example, the RI value selected on the reference signal resource corresponding to TRP1 is from the first RI value set, and the RI value selected on the reference signal resource corresponding to TRP2 is from the second RI value set.

Optionally, for the case where the first rank restriction indication information is used to determine A first parameters and B second parameters, as well as C third parameters and D fourth parameters, the first type of CSI information in the CSI report may be: Contains second CSI measurement information. The second CSI measurement information is obtained on multiple reference signal resources (eg, two reference signal resources) in the reference signal resource group associated with the first type of CSI information. The second CSI measurement information includes rank indication RI information; the RI information is associated with the second RI value and the third RI value respectively, the second RI value is equal to one of the A first parameters, and the second RI value is equal to one of the A first parameters. The value is not equal to any of the B second parameters; the third RI value is equal to one of the C third parameters, and the third RI value is not equal to any of the D fourth parameters.

Optionally, the first type of CSI information may further include second CRI information. The second CRI information is used to indicate a reference signal resource group, that is, a reference signal resource group associated with the first type of CSI information, and can further inform the network device that the second CSI measurement information is based on the Z second interference measurement resources and the reference signal resource group. Obtained on the multi-reference signal resources in the signal resource group. Optionally, the second CSI measurement information further includes one or more of PMI information, CQI information, and LI information.

Wherein, the Z is an integer greater than or equal to 1. The second interference measurement resource is configured by a network device; the second interference measurement resource is associated with the reference signal resource group associated with the first type of CSI information; or the second interference measurement resource is associated with Multiple reference signal resources in the reference signal resource group associated with the first type of CSI information have an associated relationship.

In Embodiment 1.3, the first rank restriction indication information is used to determine P parameter combinations, and each parameter combination includes multiple parameters.

Wherein, each parameter combination is a combination of RI values that the terminal is allowed to choose to report, and correspondingly, multiple parameters in each parameter combination are RI values that the terminal is allowed to choose to report. Wherein, P is an integer greater than or equal to 1. The number of parameters in each parameter combination is determined by the number of TRPs participating in cooperative transmission. Therefore, for convenience of description, the present application mainly takes the parameter combination including two parameters as an example for description.

Multiple parameters in each parameter combination are integers greater than or equal to 1 and less than or equal to M3. M3 can be an integer equal to 4 or 8. Since the maximum number of possible streams received by the terminal is 8, each parameter in the parameter combination may not exceed 4 respectively, that is, M3 is equal to 4. Optionally, M3 is equal to 8, which can have better scalability and compatibility, which is not limited in this application.

That is to say, the value of M3 determines the maximum candidate value of the RI value, and the receiving capability of the terminal can be 4 streams or 8 streams. Therefore, the value of M3 is equal to 4 or 8, that is, the maximum candidate value of the RI value is 4 or 8.

For example, taking two TRP cooperative transmissions as an example, the first rank restriction indication information is used for the determined P parameter combinations, as shown in Table 2, that is, P is equal to 4. That is to say, the RI information in the first type of CSI information may be one of 00, 01, 10 or 11, and the two RI values corresponding to the RI information in the first type of CSI information belong to one parameter combination of the P parameter combinations parameters, such as r ₁ , r ₂ . For example, both RI values in the RI value combination corresponding to each RI information are integers less than or equal to 4.

Table 2: Correspondence between RI information and RI value combination

RI信息RI information	0000	0101	1010	1111
r ₁ r ₁	11	11	22	22
r ₂ r ₂	11	22	11	22

In addition, the first type of CSI report includes third CSI measurement information; the third CSI measurement information is obtained on multiple reference signal resources in a reference signal resource group associated with the first type of CSI information; the third CSI measurement information Including rank indication RI information; the RI information has an associated relationship with two RI values, both of which are multiple parameters in one parameter combination in the P parameter combinations.

Wherein, the first type of CSI information may further include third CRI information. The third CRI information is used to indicate a reference signal resource group, that is, a reference signal resource group associated with the first type of CSI information, so as to inform the network device that the third CSI measurement information is based on multiple reference signals in the reference signal resource group obtained from resources. Optionally, the third CSI measurement information further includes one or more of PMI information, CQI information, and LI information.

Embodiment 1.4, the second rank restriction indication information is used to determine E fifth parameters and F sixth parameters.

Wherein, the E and the F are respectively an integer greater than or equal to 1, and the sum of the E and the F is equal to M4, and the M4 is an integer greater than 1. The fifth parameter is the RI value that the terminal is allowed to choose to report, and the sixth parameter is the RI value that the terminal is prohibited from choosing to report. Optionally, the fifth parameter and the sixth parameter are respectively an integer greater than or equal to 1 and less than or equal to the M4.

The value of M4 determines the maximum candidate value of the RI value, and the receiving capability of the terminal may be 4 streams or 8 streams. Therefore, the value of M4 is equal to 8, that is, the maximum candidate value of the RI value is 8.

In addition, the fifth parameter has an associated relationship with the sixth parameter. For example, the set composed of E fifth parameters is a subset of the set {1, 2, 3, 4...M4}, and the set composed of F sixth parameters is A subset of the set {1,2,3,4...M4}, and the set of E fifth parameters is the complement of the set of F sixth parameters, or the set of E fifth parameters and F The intersection between sets consisting of the sixth parameter is the empty set.

Optionally, since the maximum number of streams received by the terminal is 8, for a single TRP measurement assumption, M4 may be equal to 8.

Optionally, in Embodiment 1.4, reference may be made to the implementation described in Embodiment 1.1 above, to inform the terminal that the terminal is allowed to select the reported RI value, and that the terminal is prohibited from selecting the reported RI value.

It can be seen that in the above Embodiments 1.1 to 1.4, the first rank restriction indication information is used to determine the information of the RI value allowed to be reported under the assumption of multi-TRP measurement; the second rank restriction indication information is used to determine the information allowed to report under the assumption of single TRP measurement information on the RI value.

Optionally, the second type of CSI report includes fourth CSI measurement information; the fourth CSI measurement information is obtained on a reference signal resource associated with the Z fourth interference measurement resources and the second type of CSI information; the fourth The CSI measurement information includes rank indication RI information; the RI information has an associated relationship with an RI value, and the RI value is equal to one of the E fifth parameters.

Wherein, the Z is an integer greater than or equal to 1. The fourth interference measurement resource is configured by a network device; the fourth interference measurement resource has an association relationship with the reference signal resource associated with the second type of CSI information.

Optionally, the second type of CSI information may further include fourth CRI information. The fourth CRI information is used to indicate a reference signal resource, that is, a reference signal resource associated with the second type of CSI information, and further, the network device can be informed that the fourth CSI measurement information is obtained on the reference signal resource. Optionally, the fourth CSI measurement information further includes one or more of PMI information, CQI information, and LI information.

In an optional implementation manner, taking two TRP cooperative transmissions as an example, Embodiment 1.1 and Embodiment 1.4 are combined, and the A and the E satisfy

or

in

Indicates a round-up operation. Since the allowed RI values are A under the assumption of two TRP measurements, and the allowed RI values are E under the assumption of a single TRP measurement, therefore,

or

It can be ensured that when the terminal reports two TRP measurement hypotheses, the load of the RI information in the first part of the CSI report is equal to the load of the RI information in the first part of the CSI report when the terminal reports a single TRP measurement hypothesis. Therefore, under different measurement assumptions of the terminal, the CSI report load is the same, so as to avoid the problem that the network device cannot determine the CSI report load, which leads to the failure of reception.

Optionally, since the range of RI values that are allowed to be selected on the reference signal resources corresponding to each TRP is the same, that is, they belong to the same RI value set, this embodiment limits the number of TRPs for CSI reports corresponding to multiple TRPs ( or the number of TCI states) and

The product between is equal to

That’s enough, or the result of rounding up the product between the number of TRPs (or the number of TCI states) and log ₂ A is equal to

That's it.

In another optional implementation manner, taking two TRP coordinated transmissions as an example, implementation manner 1.2 and implementation manner 1.4 may be combined, and the A, the C, and the E satisfy

or

in

Indicates a round-up operation. It can be seen that the RI values allowed to be reported under the two TRP measurement assumptions are two sets of RI values. For example, one includes A RI values that are allowed to be reported, and the other includes C RI values that are allowed to be reported. Under the assumption of a single TRP measurement, reporting is allowed. The RI value of E is, therefore,

or

Optionally, since the range of RI values allowed to be selected on the reference signal resource corresponding to each TRP belongs to each RI value set, this embodiment limits each TRP (or each TCI state) for multiple TRP measurement assumptions. In the corresponding RI value set, the sum of the bits of each RI value is equal to

That's it.

In yet another optional implementation manner, implementation manner 1.3 and implementation manner 1.4 may be combined, and the P and the E satisfy

in

Indicates a round-up operation. It can be seen that the combination of RI values allowed to be reported under the two TRP measurement assumptions is P; the RI values allowed to be reported under the single TRP measurement assumption are E. Therefore,

Optionally, since the RI values allowed to be selected on the reference signal resources corresponding to each TRP under the assumption of multiple TRP measurement all belong to the same RI value combination, under the assumption of multiple TRP measurement, the number of RI values in the combination of RI values is equal to The number of TRPs for cooperative transmission is sufficient. Therefore, for the multi-TRP measurement assumption in this embodiment, the number P of RI value combinations allowed to be selected is limited to satisfy

That's it.

To sum up, in the CSI reporting method 100 combined with the above-mentioned corresponding embodiments, the network device can configure multiple sets of rank restriction sets (ie, the above-mentioned RI value sets) for the terminal, and restrict the CSI reporting number 1 under different measurement assumptions. The load required for the RI value allowed to be reported in one part is the same, so as to ensure that under different measurement assumptions, the network device determines the load of the first part of the CSI report according to the preset parameters, and will not Different decisions make the network device unable to know the load of the first part of the CSI report.

Please refer to FIG. 4. FIG. 4 is a schematic flowchart of a CSI reporting method 200 provided by an embodiment of the present application. As shown in FIG. 4, the CSI reporting method 200 may include but is not limited to the following steps:

S201. The network device sends second configuration information;

S202, the terminal receives the second configuration information;

As mentioned above, the second configuration information may be the same configuration information as the first configuration information, or may be different configuration information, which is not limited in this application. If the second configuration information and the first configuration information are different configuration information, the terminal may also obtain the first configuration information to obtain the aforementioned reference signal resource set and N reference signal resource groups. Optionally, in addition to being actively sent by the network device, the second configuration information may also be actively acquired by the terminal, etc., which is not limited in this application.

The second configuration information is used to indicate the first codebook subset information and the second codebook subset information. Optionally, the second configuration information may directly indicate the first codebook subset information and the second codebook subset information, or may indirectly indicate the first codebook subset information and the second codebook subset information, or may be combined. Other configuration information or signaling is used to indicate the first codebook subset information and the second codebook subset information, which is not limited in this application. For example, an indirect way may be: the second configuration information may include codebook configuration (CodebookConfig) information; the codebook configuration information includes codebook subset configuration information (also referred to as codebook subset restriction information); The codebook subset configuration information is used to determine the first codebook subset information and the second codebook subset information. Optionally, the codebook subset configuration information is used to determine the first codebook subset information and the second codebook subset information in a set of preset precoding.

The first codebook subset information is associated with the first reference signal resource subset; the second codebook subset information is associated with the second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively Correlating different transport configurations indicates status. It can be seen that different TRPs are associated with different codebook subset information.

The first reference signal resource subset and the second reference signal resource subset may be determined based on the configuration information of the reference signal resources. The first reference signal resource subset includes multiple reference signal resources, and the first reference signal resource subset all belong to the reference signal resource set determined based on the configuration information of the reference signal resources. The second reference signal resource subset includes a plurality of reference signal resources, and the second reference signal resource subset also belongs to the reference signal resource set. Among the N reference signal groups determined based on the reference signal resource set, each reference signal resource group includes multiple reference signal resources, and the M reference signal resources included in the same reference signal resource group belong to the M reference signal resource subgroups respectively. set, and the multiple reference signal resources included in each reference signal resource group belong to the reference signal resource set. It should be noted that, in the actual configuration, the value of M is determined by the number of TRPs participating in cooperative transmission. Therefore, for the convenience of description, this application mainly takes M equal to 2 as an example for description.

Optionally, the configuration information of the reference signal resource may be associated with an interference measurement resource set, and the interference measurement resource set may include multiple interference measurement resources. Accordingly, each reference signal resource in the first subset of reference signal resources is associated with one or more interference measurement resources in the interference measurement resource set. Specifically, for the association relationship between the reference signal resource or the reference signal resource group and the interference measurement resource, reference may be made to the foregoing description, which will not be described in detail here.

In an optional implementation manner, the first codebook subset information is used to determine G seventh parameters and H eighth parameters, wherein G and H are integers greater than or equal to 1, and satisfy all The sum of the G and the H is equal to M5; the second codebook subset information is used to determine the J ninth parameters and K tenth parameters, where J and K are integers greater than or equal to 1, and satisfy J and K The sum is equal to M5; wherein, the M5 is an integer greater than 1; optionally, M5 is determined based on the second configuration information.

In addition, the seventh parameter has an associated relationship with the eighth parameter. For example, the set composed of G seventh parameters is a subset of the set {1, 2, 3, 4...M5}, and the set composed of H eighth parameters is A subset of the set {1,2,3,4...M5}, and the set of G seventh parameters is the complement of the set of H eighth parameters, or the set of G seventh parameters and H The intersection between sets consisting of the eighth parameters is an empty set.

In addition, the ninth parameter has an associated relationship with the tenth parameter. For example, the set composed of J ninth parameters is a subset of the set {1, 2, 3, 4...M5}, and the set composed of J ninth parameters is A subset of the set {1,2,3,4...M5}, and the set of J ninth parameters is the complement of the set of K tenth parameters, or the set of J ninth parameters and K The intersection between sets consisting of the tenth parameter is the empty set.

Wherein, the seventh parameter and the eighth parameter are respectively the precoding that the terminal reports PMI information that is allowed to be associated, but the seventh parameter is that the PMI information reported by the terminal on the reference resources in the corresponding first reference signal resource subset is allowed to be associated Precoding, the eighth parameter is the precoding that is allowed to be associated with the PMI information reported by the terminal on the reference resources in the corresponding second reference signal resource subset. The ninth parameter and the tenth parameter are respectively the precoding for which the PMI information reported by the terminal is prohibited from being associated, but the ninth parameter is the precoding for which the PMI information reported by the terminal on the reference resources in the corresponding first reference signal resource subset is prohibited from being associated. The tenth parameter is the precoding for which the PMI information reported by the terminal on the reference resources in the corresponding second reference signal resource subset is prohibited from being associated. That is, the G seventh parameters are the allowed precoding corresponding to the first codebook subset information; the H eighth parameters are the forbidden precoding corresponding to the first codebook subset information; the J ninth parameters are the second code The allowed precoding corresponding to this subset information; the K tenth parameters are the prohibited precoding corresponding to the second codebook subset information. Here, "allowed" may mean that the terminal is allowed to select, or the PMI information reported by the terminal is allowed to be associated; "prohibited" may mean that the terminal is forbidden to select, or the PMI information reported by the terminal is forbidden to be associated.

For example, the codebook subset configuration information may be two bit sequences, which are bit sequence 1 and bit sequence 2 respectively. The length of bit sequence 1 is the sum of G and H, and the length of bit sequence 2 is the sum of J and K. The sum of G and H is equal to the sum of J and K, and the sum of G and H and the sum of J and K are all equal to the number of precodings included in a preset group of precodings. Each bit in the bit sequence 1 corresponds to one precoding in a preset group of precodings. Each bit in the bit sequence 2 corresponds to one precoding in a preset group of precodings. In this way, the seventh parameter is the precoding corresponding to the bit "1" in the bit sequence 1, and the eighth parameter is the precoding corresponding to the bit "0" in the bit sequence 1. The ninth parameter is the precoding corresponding to the bit "1" in the bit sequence 2, and the tenth parameter is the precoding corresponding to the bit "0" in the bit sequence 1.

S203. The terminal sends a CSI report to the network device according to the first codebook subset information and the second codebook subset information.

S204. The terminal receives the CSI report reported by the terminal.

Optionally, the CSI report includes fifth CSI measurement information; the fifth CSI measurement information is obtained on the first reference signal resource and the second reference signal resource in the Z fifth interference measurement resource and reference signal resource groups; wherein, The first reference signal resource belongs to the first reference signal resource subset, and the second reference signal resource belongs to the second reference signal resource subset. The fifth CSI measurement information includes first PMI information and second PMI information. The first PMI information has an associated relationship with one or more of the G seventh parameters; the first PMI information does not have an associated relationship with any one of the H eighth parameters; the second PMI information is associated with the J One or more ninth parameters among the eighth parameters have an associated relationship; the second PMI information does not have an associated relationship with any tenth parameter among the K tenth parameters. It can be seen that, in this embodiment, for two TRP cooperative transmissions, that is, two TRP measurement assumptions, two PMI information can be reported, respectively from parameters determined by the two codebook subset information.

Wherein, the Z is an integer greater than or equal to 1. The fifth interference measurement resource is configured by the network device; the fifth interference measurement resource is associated with the reference signal resource group; or the fifth interference measurement resource is associated with the first reference in the reference signal resource group The signal resource and the second reference signal resource have an associated relationship.

Optionally, the CSI report includes sixth CSI measurement information; the sixth CSI measurement information is obtained on the Z sixth interference measurement resources and one reference signal resource in the first reference signal resource subset. where Z is an integer greater than or equal to 1. The sixth interference measurement resource is configured by the network device; the sixth interference measurement resource has an associated relationship with the parameter signal resource.

The sixth CSI measurement information includes third PMI information; the third PMI information has an associated relationship with one or more seventh parameters in the G seventh parameters; the third PMI information and any one eighth parameter in the H eighth parameters not related;

and / or,

The CSI report includes seventh CSI measurement information; the seventh CSI measurement information is obtained on the Z seventh interference measurement resources and one reference signal resource in the second reference signal resource subset. where Z is an integer greater than or equal to 1. The seventh interference measurement resource is configured by the network device; the seventh interference measurement resource is associated with the parameter signal resource. The seventh CSI measurement information includes fourth PMI information; the fourth PMI information has an associated relationship with one or more ninth parameters of the J eighth parameters; the fourth PMI information is associated with any one of the K tenth parameters. Ten parameters are not associated.

It can be seen that, in this embodiment, for the case of a single TRP measurement assumption, in the CSI reporting method 200, the terminal may use the Z sixth interference measurement resources and one reference signal resource in the first reference signal resource subset based on the first reference signal resource. The codebook subset information determines the PMI value, and reports the PMI information above. Or, in the case of a single TRP measurement assumption, in the CSI reporting method 200, the terminal may use the second codebook subset information on the Z seventh interference measurement resources and one reference signal resource in the second reference signal resource subset Determine the PMI value and report the PMI information. Alternatively, in the case of a single TRP measurement assumption, in the CSI reporting method 200, the terminal may report two CSI measurement information, wherein one CSI measurement information is a reference in the Z sixth interference measurement resources and the first reference signal resource subset On the signal resources, the PMI value is determined based on the first codebook subset information, and the PMI information is reported; the other CSI measurement information uses the Z seventh interference measurement resources and one reference signal resource in the first reference signal resource subset, based on The second codebook subset information determines the PMI value, and reports the PMI information above.

It can be seen that, in the case of multiple TRP measurement assumptions, the present application uses two codebook subset information to avoid the PMI information reported by the terminal, resulting in the problem that the signal transmitted by the network device causes strong interference to neighboring cells. In addition, the CSI reporting method 200 takes into account the different geographic locations where different TRPs are located, and adopts the manner of two codebook subset information, which is different from using one codebook subset information for two TRPs in the corresponding interference measurement resources and Compared with the method of selecting PMI information on the reference signal resource, the problem of invalid or inaccurate CSI feedback caused by too few PMIs allowed to be selected by the codebook subset restriction can be avoided.

That is to say, in this application, the network side can restrict multiple sets of codebook subset restriction parameters (ie, codebook subset information) for the terminal, and each set of codebook subset restriction parameters is associated with reference signals sent by different TRPs , the PMI corresponding to the CSI estimated by the terminal on a specific reference signal only has an associated relationship with one or more precodings in the allowed precoding set. The precoding set allowed by a specific TRP is indicated by the configured codebook subset restriction parameter. When the TRP associated with the configured codebook subset restriction parameter is signaled using the precoding contained in the allowed precoding set, Will not cause strong neighbor cell interference. Therefore, the problem of invalid or inaccurate CSI feedback caused by too few PMIs allowed to be selected by the codebook subset restriction can be avoided without causing interference from strong neighbor cells.

In the above embodiments provided by the present application, the methods provided by the embodiments of the present application are respectively introduced from the perspectives of terminals and network devices. In order to implement the functions in the methods provided in the embodiments of the present application, the terminal and the network device may include hardware structures and software modules, and implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. A certain function among the above functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module. The apparatus of the embodiment of the present application will be described in detail below with reference to FIG. 5 to FIG. 7 . Wherein, the device is a terminal or a network device; optionally, the device may be a device in a terminal or a network device.

FIG. 5 shows a schematic block diagram of a communication apparatus 500, and the communication apparatus 500 may perform related operations of the terminal or network device in the foregoing method embodiments. The communication device 500 can execute the above-mentioned channel state information reporting method 100 and some embodiments thereof.

In a possible design, the communication device 500 performs related operations of the terminal, and the communication device 500 includes but is not limited to:

A communication unit 501, configured to acquire first configuration information; the first configuration information is used to indicate first rank restriction indication information and second rank restriction indication information;

The first rank restriction indication information is used to obtain RI information in the first type of CSI information, where the first type of CSI information is associated with a reference signal resource group;

The reference signal resource group is one of one or more reference signal resource groups determined from a reference signal resource set; the reference signal resource set includes K reference signal resources, where K is greater than or equal to 2 integer;

The second rank restriction indication information is used to obtain RI information in the second type of CSI information, where the second type of CSI information has an associated relationship with one of the K reference signal resources;

The communication unit 501 is further configured to send a CSI report to a network device; the CSI report includes the first type of CSI information or the second type of CSI information.

The processing unit 502 is configured to determine the CSI report according to the first configuration information.

In another possible design, the communication apparatus 500 performs related operations of network equipment, and the communication apparatus 500 includes but is not limited to:

A communication unit 501, configured to send first configuration information; the first configuration information is used to indicate first rank restriction indication information and second rank restriction indication information;

The communication unit 501 is further configured to receive a CSI report from a terminal; the CSI report includes the first type of CSI information or the second type of CSI information.

In an optional implementation manner, the processing unit 502 is further configured to determine S reference signal resources from the reference signal resource set, where the S is an integer greater than or equal to 1 and less than the K; The second type of CSI information has an associated relationship with one reference signal resource in the S reference signal resources.

In an optional implementation manner, the first rank restriction indication information is used to determine A first parameters and/or B second parameters, wherein the A and the B are respectively integers greater than or equal to 1 , and the sum of the A and the B is equal to M1; the M1 is an integer greater than 1.

In an optional implementation manner, the first parameter and the second parameter are respectively an integer greater than or equal to 1 and less than or equal to the M1.

In an optional implementation manner, the first rank restriction indication information is further used to determine C third parameters and/or D fourth parameters, wherein the C and the D are respectively greater than or equal to 1 an integer, and satisfies that the sum of the C and the D is equal to M2, which is an integer greater than 1.

In an optional implementation manner, the third parameter and the fourth parameter are respectively an integer greater than or equal to 1 and less than or equal to the M2.

In an optional implementation manner, the first rank restriction indication information is used to determine P parameter combinations; each parameter combination includes multiple parameters, wherein the P is an integer greater than or equal to 1, and the Multiple parameters are integers greater than 1 and less than or equal to M3.

In an optional implementation manner, the second rank restriction indication information is used to determine the E fifth parameters and the F sixth parameters, wherein the E and the F are respectively integers greater than or equal to 1, and It is satisfied that the sum of the E and the F is equal to M3, and the M3 is an integer greater than 1.

In an optional implementation manner, the fifth parameter and the sixth parameter are respectively an integer greater than or equal to 1 and less than or equal to the M3.

In an optional embodiment, the A and E satisfy

Alternatively, A and E satisfy

in,

Indicates a round-up operation.

In another optional implementation manner, the A, the C and the E satisfy

Alternatively, the A, the C and the E satisfy

In an optional embodiment, the P and the E satisfy

in

Indicates a round-up operation.

In an optional implementation manner, the first type of CSI information includes first CSI measurement information. The first CSI measurement information is obtained on multiple reference signal resources in the reference signal resource group associated with the Z first interference measurement resources and the first type of CSI information, where Z is greater than or equal to 1 Integer. The first interference measurement resource is configured by the network device; the first interference measurement resource has an association relationship with multiple reference signal resources in the reference signal resource group associated with the first type of CSI information. The first CSI measurement information includes rank indication RI information. The RI information has an associated relationship with two first RI values, and each first RI value is one of the A first parameters; and each of the first RI values is not equal to the B second parameters any of the parameters.

In an optional implementation manner, the first type of CSI report includes second CSI measurement information; the second CSI measurement information is the reference signal resource associated with the Z second interference measurement resources and the first type of CSI information obtained from multiple reference signal resources in the group, the Z is an integer greater than or equal to 1; the second interference measurement resource is configured by the network device; the second interference measurement resource and the first type of CSI information The associated reference signal resource group has an associated relationship; or the second interference measurement resource has an associated relationship with multiple reference signal resources in the reference signal resource group associated with the first type of CSI information; the second CSI The measurement information includes rank indication RI information; the RI information has an associated relationship with a second RI value and a third RI value respectively, the second RI value is equal to one of the A first parameters, and the second RI value is equal to one of the A first parameters. The RI value is not equal to any one of the B second parameters; the third RI value is equal to one of the C third parameters, and the third RI value is not equal to the D fourth parameters any of the .

In an optional implementation manner, the first type of CSI report includes third CSI measurement information; the third CSI measurement information is the reference signal resource associated with the Z third interference measurement resources and the first type of CSI information obtained from multiple reference signal resources in the group, the Z is an integer greater than or equal to 1; the third interference measurement resource is configured by the network device; the third interference measurement resource is associated with the reference signal of the first type of CSI information The resource group has an association relationship; or the third interference measurement resource has an association relationship with multiple reference signal resources in the reference signal resource group associated with the first type of CSI information; the third CSI measurement information includes a rank indication RI information; RI information has an associated relationship with two RI values, and the two RI values are equal to a plurality of parameters in one parameter combination of the P parameter combinations.

In an optional implementation manner, the second type of CSI information includes fourth CSI measurement information; the fourth CSI measurement information is the reference signal resource associated with the Z fourth interference measurement resources and the second type of CSI information Z is an integer greater than or equal to 1; the fourth CSI measurement information includes RI information; the fourth interference measurement resource is configured by the network device; the fourth interference measurement resource is associated with the second type of CSI information The reference signal resource has an associated relationship; the RI information has an associated relationship with a fourth RI value, and the fourth RI value is equal to one of the E fifth parameters; and the fourth RI value is not equal to the F sixth parameters. any one of .

Optionally, the communication device 500 may further include a storage unit 503 for storing the first configuration information.

In another embodiment, the communication device 500 can execute the above-mentioned channel state information reporting method 200 and some implementations thereof.

In a possible design, the communication device 500 may perform related operations of the terminal, and the communication device 500 may include but is not limited to:

The communication unit 101 is configured to acquire second configuration information, where the second configuration information is used to indicate the first codebook subset information and the second codebook subset information; the first codebook subset information is associated with the first reference signal resource subset The second codebook subset information is associated with the second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively associated with different transmission configuration indication states;

The communication unit 501 is further configured to send a CSI report to a network device according to the first codebook subset information and the second codebook subset information.

In a possible design, the communication apparatus 500 may perform operations related to network equipment, and the communication apparatus 500 may include, but is not limited to:

The communication unit 501 is configured to send second configuration information, where the second configuration information is used to indicate first codebook subset information and second codebook subset information; the first codebook subset information is associated with a first reference signal resource subset The second codebook subset information is associated with the second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively associated with different transmission configuration indication states;

The communication unit 501 is further configured to receive a CSI report from the terminal according to the first codebook subset information and the second codebook subset information.

Some optional implementations of the communication device 500 are described below.

Optionally, M5 may be equal to the number of precodings included in a preset group of precodings. The first codebook subset information is used to determine, from the group of precoding, precoding information that is allowed to be associated with the PMI information reported by the G terminals and precoding information that is forbidden to be associated with the PMI information reported by the H terminals. The second codebook subset information is used to determine, from the group of precoding, the precoding information that is allowed to be associated with the PMI information reported by the J terminals and the precoding information that is forbidden to be associated with the PMI information reported by the K terminals.

The fifth interference measurement resource is configured by the network device; the fifth interference measurement resource is associated with the reference signal resource group; or the fifth interference measurement resource is associated with the first reference signal resource and the second reference signal resource in the reference signal resource group Signal resources are associated. Z is an integer greater than or equal to 1. The first reference signal resource belongs to the first reference signal resource subset, and the second reference signal resource belongs to the second reference signal resource subset. The fifth CSI measurement information includes first PMI information and second PMI information. The first PMI information has an associated relationship with one or more seventh parameters among the G seventh parameters; the first PMI information has no associated relationship with any eighth parameter among the H eighth parameters. The second PMI information has an associated relationship with one or more ninth parameters among the J eighth parameters; the second PMI information has no associated relationship with any tenth parameter among the K tenth parameters.

and / or,

FIG. 6 shows a schematic block diagram of a communication device 600 .

In an implementation manner, the communication apparatus 600 corresponds to the terminal in the above channel state information reporting method. Optionally, the communication apparatus 600 is an apparatus in a terminal that executes the foregoing method embodiments, such as a chip, a chip system, or a processor. The communication apparatus 600 may be used to implement the methods described in the foregoing method embodiments, and for details, refer to the descriptions in the foregoing method embodiments.

In another implementation manner, the communication apparatus 6000 corresponds to the network device in the above method for reporting channel state information. Optionally, the communication apparatus 600 is an apparatus in a network device that executes the foregoing method embodiments, such as a chip, a chip system, or a processor. The communication apparatus 1000 may be used to implement the methods described in the foregoing method embodiments, and for details, reference may be made to the descriptions in the foregoing method embodiments.

Communication apparatus 600 may include one or more processors 601 . The processor 601 may be a general-purpose processor or a special-purpose processor, or the like. For example, it may be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminals, terminal chips, DU or CU, etc.), execute computer programs, process computer program data.

The communication device 600 may also include a transceiver 605 . The transceiver 605 may be called a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function. The transceiver 605 may include a receiver and a transmitter, the receiver may be called a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be called a transmitter or a transmitting circuit, etc., for implementing a transmitting function. Optionally, the communication device 600 may further include an antenna 606 .

Optionally, the communication device 600 may include one or more memories 602 on which instructions 604 may be stored, and the instructions 604 may be computer programs that can be executed on the communication device 600 to enable the communication device 600 Execute the methods described in the above method embodiments. Optionally, the memory 602 may also store data. The communication device 600 and the memory 602 may be provided separately or integrated together.

In an implementation manner, for the communication apparatus 600 to implement the functions of the terminal device in the foregoing method embodiments:

The transceiver 605 is configured to perform step S102 in FIG. 3 and step S202 in FIG. 4 .

Optionally, the processor 601 may perform operations related to determining the CSI report according to the first configuration information.

In another implementation manner, for the communication apparatus 600 to implement the functions of the network device in the foregoing method embodiments:

The transceiver 605 is configured to perform steps S101 and S101 in FIG. 3 or steps S201 and S204 in FIG. 4 .

Optionally, the processor 601 is configured to perform an operation related to determining the second configuration information, or an operation related to determining the first configuration information.

In one implementation, the processor 601 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. Transceiver circuits, interfaces or interface circuits used to implement receiving and transmitting functions may be separate or integrated. The above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transmission.

In an implementation manner, the processor 601 may store instructions 603, which may be a computer program, and the computer program 603 runs on the processor 601 to enable the communication device 600 to execute the methods described in the above method embodiments. The computer program 603 may be embodied in the processor 601, in which case the processor 601 may be implemented by hardware.

In an implementation manner, the communication apparatus 600 may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application specific integrated circuits (application specific integrated circuits, ASIC), printed circuit board (PCB), electronic equipment, etc. The processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiment may be an AP MLD or an AP of the AP MLD, but the scope of the communication device described in this application is not limited to this, and the structure of the communication device may not be limited by FIG. 6 . The communication apparatus may be a stand-alone device or may be part of a larger device.

For the case that the communication device may be a chip or a chip system, reference may be made to the schematic structural diagram of the chip shown in FIG. 7 . The chip shown in FIG. 7 includes a processor 701 , an interface 702 and a memory 703 . The number of processors 701 may be one or more, and the number of interfaces 702 may be multiple. The memory 703 may be used to store related data or information, such as the first configuration information or the second configuration information described in this application.

For the chip used to realize the function of the terminal in the above method embodiment:

The interface 702 is used to execute steps S102 and S103 in FIG. 3 or steps S202 and S203 in FIG. 4 .

Optionally, the processor 301 is configured to perform a related operation of determining a CSI report according to the first configuration information.

Optionally, the chip may also perform the functions of the network device in the foregoing method embodiments:

The interface 702 is used to execute steps S101 and S104 in FIG. 3 or steps S201 and S204 in FIG. 4 .

Optionally, the processor 701 is configured to determine the first configuration information or an operation related to the first configuration information.

Optionally, the chip may also execute the relevant implementation manners in the foregoing method embodiments, which will not be described in detail here. For example, optionally, the communication apparatus 700 may also execute the solutions described in the channel state information reporting method 100 to the channel state information reporting method 200 described above, which will not be described in detail here.

Those skilled in the art can also understand that various illustrative logical blocks (illustrative logical blocks) and steps (steps) listed in the embodiments of the present application may be implemented by electronic hardware, computer software, or a combination of the two. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be construed as exceeding the protection scope of the embodiments of the present application.

The present application further provides a computer-readable storage medium on which a computer program is stored, and when the computer-readable storage medium is executed by a computer, implements the functions of any of the foregoing method embodiments.

The present application also provides a computer program product, which implements the functions of any of the above method embodiments when the computer program product is executed by a computer.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer program may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state disks, SSD)) etc.

Claims

A method for reporting channel state information, characterized in that the method comprises:

obtaining configuration information; the configuration information is used to indicate the first rank restriction indication information and the second rank restriction indication information;

The first rank restriction indication information is used to obtain rank indication RI information in the first type of CSI information, where the first type of CSI information is associated with a channel measurement resource pair;

The channel measurement resource pair is one of one or more channel measurement resource pairs determined from a reference signal resource set; the reference signal resource set includes K reference signal resources, where K is greater than or equal to 2 integer;

The second rank restriction indication information is used to obtain RI information in the second type of CSI information, where the second type of CSI information has an associated relationship with one of the K reference signal resources;

Send a CSI report to the network device;

The CSI report includes the first type of CSI information or the second type of CSI information.
The method of claim 1, wherein the method further comprises:

Determine S reference signal resources from the reference signal resource set, where the S is an integer greater than or equal to 1 and less than the K;

The second type of CSI information has an associated relationship with one reference signal resource in the S reference signal resources.
The method of claim 1, wherein the first rank restriction indication information is used to determine A first parameters and/or B second parameters, wherein the A and the B are respectively greater than is an integer equal to 1, and satisfies that the sum of the A and the B is equal to M1; the M1 is an integer greater than 1.
The method according to claim 3, wherein the first rank restriction indication information is further used to determine C third parameters and/or D fourth parameters, wherein C and D are respectively An integer greater than or equal to 1, and satisfying that the sum of the C and the D is equal to M2, and the M2 is an integer greater than 1.
The method of claim 1, wherein the first rank restriction indication information is used to determine P parameter combinations; each parameter combination includes multiple parameters, wherein P is an integer greater than or equal to 1 , and the multiple parameters are respectively integers greater than 1 and less than or equal to M3.
The method according to any one of claims 1 to 5, wherein the second rank restriction indication information is used to determine E fifth parameters and F sixth parameters, wherein the E and the F are integers greater than or equal to 1, respectively, and satisfy that the sum of the E and the F is equal to M4, and the M4 is an integer greater than 1.
The method of claim 3, wherein

the first type of CSI information includes first CSI measurement information;

The first CSI measurement information is obtained on multiple reference signal resources in the channel measurement resource pair associated with the Z first interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The first interference measurement resource is configured by a network device; the first interference measurement resource has an association relationship with multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information;

The first CSI measurement information includes rank indication RI information;

The RI information is associated with two first RI values, and each first RI value is one of the A first parameters; and each of the first RI values is not equal to the B first parameters any of the second parameters.
The method of claim 6, wherein:

the first type of CSI report includes second CSI measurement information;

The second CSI measurement information is obtained on multiple reference signal resources in the pair of channel measurement resources associated with the Z second interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The second interference measurement resource is configured by the network device; the second interference measurement resource is associated with the channel measurement resource pair associated with the first type of CSI information; or the second interference measurement resource is associated with Multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information have an associated relationship;

The second CSI measurement information includes rank indication RI information;

The RI information is respectively associated with a second RI value and a third RI value, the second RI value is equal to one of the A first parameters, and the second RI value is not equal to the Any one of the B second parameters; the third RI value is equal to one of the C third parameters, and the third RI value is not equal to any one of the D fourth parameters.
The method of claim 5, wherein:

the first type of CSI report includes third CSI measurement information;

The third CSI measurement information is obtained on multiple reference signal resources in the pair of channel measurement resources associated with the Z third interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The third interference measurement resource is configured by the network device; the third interference measurement resource is associated with the channel measurement resource pair associated with the first type of CSI information; or the third interference measurement resource is associated with Multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information have an associated relationship;

The third CSI measurement information includes rank indication RI information;

The RI information has an associated relationship with two RI values, and the two RI values are equal to a plurality of parameters in one parameter combination of the P parameter combinations.
The method of claim 6, wherein the second type of CSI information comprises fourth CSI measurement information;

The fourth CSI measurement information is obtained on the reference signal resources associated with the Z fourth interference measurement resources and the second type of CSI information, where Z is an integer greater than or equal to 1;

The fourth CSI measurement information includes RI information;

The fourth interference measurement resource is configured by a network device; the fourth interference measurement resource has an association relationship with the reference signal resource associated with the second type of CSI information;

The RI information is associated with a fourth RI value, and the fourth RI value is equal to one of the E fifth parameters; and the fourth RI value is not equal to any of the F sixth parameters One.
A method for reporting channel state information, characterized in that the method comprises:

sending configuration information; the configuration information is used to indicate the first rank restriction indication information and the second rank restriction indication information;

The first rank restriction indication information is used to obtain RI information in the first type of CSI information, where the first type of CSI information has an associated relationship with a channel measurement resource pair;

The channel measurement resource pair is one of one or more channel measurement resource pairs determined from a reference signal resource set; the reference signal resource set includes K reference signal resources, where K is greater than or equal to 2 integer;

The second rank restriction indication information is used to obtain RI information in the second type of CSI information, where the second type of CSI information has an associated relationship with one of the K reference signal resources;

receiving a CSI report from the terminal;

The CSI report includes the first type of CSI information or the second type of CSI information.
The method of claim 11, wherein the method further comprises:

Determine S reference signal resources from the reference signal resource set, where the S is an integer greater than or equal to 1 and less than the K;

The second type of CSI information has an associated relationship with one reference signal resource in the S reference signal resources.
The method of claim 11, wherein the first rank restriction indication information is used to determine A first parameters and/or B second parameters, wherein the A and the B are respectively greater than is an integer equal to 1, and satisfies that the sum of the A and the B is equal to M1; the M1 is an integer greater than 1.
The method according to claim 13, wherein the first rank restriction indication information is further used to determine C third parameters and/or D fourth parameters, wherein C and D are respectively An integer greater than or equal to 1, and satisfying that the sum of the C and the D is equal to M2, and the M2 is an integer greater than 1.
The method of claim 11, wherein the first rank restriction indication information is used to determine P parameter combinations; each parameter combination includes a plurality of parameters, wherein P is an integer greater than or equal to 1 , and the multiple parameters are respectively integers greater than 1 and less than or equal to M3.
The method according to any one of claims 11 to 15, wherein the second rank restriction indication information is used to determine E fifth parameters and F sixth parameters, wherein the E and the F are integers greater than or equal to 1, respectively, and satisfy that the sum of the E and the F is equal to M4, and the M4 is an integer greater than 1.
The method of claim 13, wherein:

the first type of CSI information includes first CSI measurement information;

The first CSI measurement information is obtained on multiple reference signal resources in the channel measurement resource pair associated with the Z first interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The first interference measurement resource is configured by a network device; the first interference measurement resource has an association relationship with multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information;

The first CSI measurement information includes rank indication RI information;

The RI information is associated with two first RI values, and each first RI value is one of the A first parameters; and each of the first RI values is not equal to the B first parameters any of the second parameters.
The method of claim 16, wherein

the first type of CSI report includes second CSI measurement information;

The second CSI measurement information is obtained on multiple reference signal resources in the pair of channel measurement resources associated with the Z second interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The second interference measurement resource is configured by the network device; the second interference measurement resource is associated with the channel measurement resource pair associated with the first type of CSI information; or the second interference measurement resource is associated with Multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information have an associated relationship;

The second CSI measurement information includes rank indication RI information;

The RI information is respectively associated with a second RI value and a third RI value, the second RI value is equal to one of the A first parameters, and the second RI value is not equal to the Any one of the B second parameters; the third RI value is equal to one of the C third parameters, and the third RI value is not equal to any one of the D fourth parameters.
The method of claim 15, wherein

the first type of CSI report includes third CSI measurement information;

The third CSI measurement information is obtained on multiple reference signal resources in the pair of channel measurement resources associated with the Z third interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The third interference measurement resource is configured by the network device; the third interference measurement resource is associated with the channel measurement resource pair associated with the first type of CSI information; or the third interference measurement resource is associated with Multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information have an associated relationship;

The third CSI measurement information includes rank indication RI information;

The RI information has an associated relationship with two RI values, and the two RI values are equal to a plurality of parameters in one parameter combination of the P parameter combinations.
The method of claim 16, wherein the second type of CSI information comprises fourth CSI measurement information;

The fourth CSI measurement information is obtained on the reference signal resources associated with the Z fourth interference measurement resources and the second type of CSI information, where Z is an integer greater than or equal to 1;

The fourth CSI measurement information includes RI information;

The fourth interference measurement resource is configured by a network device; the fourth interference measurement resource has an association relationship with the reference signal resource associated with the second type of CSI information;

The RI information is associated with a fourth RI value, and the fourth RI value is equal to one of the E fifth parameters; and the fourth RI value is not equal to any of the F sixth parameters One.
A communication device, characterized in that the device comprises:

a communication unit, configured to acquire configuration information; the configuration information is used to indicate the first rank restriction indication information and the second rank restriction indication information;

The first rank restriction indication information is used to obtain the first type of CSI information, and the first type of CSI information has an associated relationship with a channel measurement resource pair;

The channel measurement resource pair is one of one or more channel measurement resource pairs determined from a reference signal resource set; the reference signal resource set includes K reference signal resources, where K is greater than or equal to 2 integer;

The second rank restriction indication information is used to obtain the second type of CSI information, and the second type of CSI information has an associated relationship with one of the K reference signal resources;

The communication unit is further configured to send a CSI report to the network device;

The CSI report includes the first type of CSI information or the second type of CSI information.
The apparatus of claim 21, wherein the apparatus further comprises:

Determine S reference signal resources from the reference signal resource set, where the S is an integer greater than or equal to 1 and less than the K;

The second type of CSI information has an associated relationship with one reference signal resource in the S reference signal resources.
The apparatus of claim 21, wherein the first rank restriction indication information is used to determine A first parameters and/or B second parameters, wherein the A and the B are respectively greater than is an integer equal to 1, and satisfies that the sum of the A and the B is equal to M1; the M1 is an integer greater than 1.
The apparatus according to claim 23, wherein the first rank restriction indication information is further used to determine C third parameters and/or D fourth parameters, wherein the C and the D are respectively An integer greater than or equal to 1, and satisfying that the sum of the C and the D is equal to M2, and the M2 is an integer greater than 1.
The apparatus of claim 21, wherein the first rank restriction indication information is used to determine P parameter combinations; each parameter combination includes a plurality of parameters, wherein P is an integer greater than or equal to 1 , and the multiple parameters are respectively integers greater than 1 and less than or equal to M3.
The apparatus according to any one of claims 21 to 25, wherein the second rank restriction indication information is used to determine E fifth parameters and F sixth parameters, wherein the E and the F are integers greater than or equal to 1, respectively, and satisfy that the sum of the E and the F is equal to M4, and the M4 is an integer greater than 1.
The apparatus of claim 23, wherein

the first type of CSI information includes first CSI measurement information;

The first CSI measurement information is obtained on multiple reference signal resources in the channel measurement resource pair associated with the Z first interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The first interference measurement resource is configured by a network device; the first interference measurement resource has an association relationship with multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information;

The first CSI measurement information includes rank indication RI information;

The RI information is associated with two first RI values, and each first RI value is one of the A first parameters; and each of the first RI values is not equal to the B first parameters any of the second parameters.
The apparatus of claim 26, wherein

the first type of CSI report includes second CSI measurement information;

The second CSI measurement information is obtained on multiple reference signal resources in the pair of channel measurement resources associated with the Z second interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The second interference measurement resource is configured by the network device; the second interference measurement resource is associated with the channel measurement resource pair associated with the first type of CSI information; or the second interference measurement resource is associated with Multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information have an associated relationship;

The second CSI measurement information includes rank indication RI information;

The RI information is respectively associated with a second RI value and a third RI value, the second RI value is equal to one of the A first parameters, and the second RI value is not equal to the Any one of the B second parameters; the third RI value is equal to one of the C third parameters, and the third RI value is not equal to any one of the D fourth parameters.
The apparatus of claim 25, wherein

the first type of CSI report includes third CSI measurement information;

The third CSI measurement information is obtained on multiple reference signal resources in the pair of channel measurement resources associated with the Z third interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The third interference measurement resource is configured by the network device; the third interference measurement resource is associated with the channel measurement resource pair associated with the first type of CSI information; or the third interference measurement resource is associated with Multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information have an associated relationship;

The third CSI measurement information includes rank indication RI information;

The RI information has an associated relationship with two RI values, and the two RI values are equal to a plurality of parameters in one parameter combination of the P parameter combinations.
The apparatus of claim 26, wherein the second type of CSI information comprises fourth CSI measurement information;

The fourth CSI measurement information is obtained on the reference signal resources associated with the Z fourth interference measurement resources and the second type of CSI information, where Z is an integer greater than or equal to 1;

The fourth CSI measurement information includes RI information;

The fourth interference measurement resource is configured by a network device; the fourth interference measurement resource has an association relationship with the reference signal resource associated with the second type of CSI information;

The RI information is associated with a fourth RI value, and the fourth RI value is equal to one of the E fifth parameters; and the fourth RI value is not equal to any of the F sixth parameters One.
The apparatus according to any one of claims 21 to 30, wherein the communication unit is a transceiver.
A communication device, characterized in that the device comprises:

a communication unit, configured to send configuration information; the configuration information is used to indicate the first rank restriction indication information and the second rank restriction indication information;

The first rank restriction indication information is used to obtain the first type of CSI information, and the first type of CSI information has an associated relationship with a channel measurement resource pair;

The channel measurement resource pair is one of one or more channel measurement resource pairs determined from a reference signal resource set; the reference signal resource set includes K reference signal resources, where K is greater than or equal to 2 integer;

The second rank restriction indication information is used to obtain the second type of CSI information, and the second type of CSI information has an associated relationship with one of the K reference signal resources;

The communication unit is further configured to receive a CSI report from the terminal;

The CSI report includes the first type of CSI information or the second type of CSI information.
The apparatus of claim 32, wherein the apparatus further comprises:

Determine S reference signal resources from the reference signal resource set, wherein the S is an integer greater than or equal to 1 and less than the K;

The second type of CSI information has an associated relationship with one reference signal resource in the S reference signal resources.
The apparatus of claim 32, wherein the first rank restriction indication information is used to determine A first parameters and/or B second parameters, wherein the A and the B are respectively greater than is an integer equal to 1, and satisfies that the sum of the A and the B is equal to M1; the M1 is an integer greater than 1.
The apparatus of claim 34, wherein the first rank restriction indication information is further used to determine C third parameters and/or D fourth parameters, wherein the C and the D are respectively An integer greater than or equal to 1, and satisfying that the sum of the C and the D is equal to M2, and the M2 is an integer greater than 1.
The apparatus of claim 32, wherein the first rank restriction indication information is used to determine P parameter combinations; each parameter combination includes a plurality of parameters, wherein the P is an integer greater than or equal to 1 , and the multiple parameters are respectively integers greater than 1 and less than or equal to M3.
The apparatus according to any one of claims 32 to 36, wherein the second rank restriction indication information is used to determine E fifth parameters and F sixth parameters, wherein the E and the F are integers greater than or equal to 1, respectively, and satisfy that the sum of the E and the F is equal to M4, and the M4 is an integer greater than 1.
The apparatus of claim 34, wherein:

the first type of CSI information includes first CSI measurement information;

The first CSI measurement information is obtained on multiple reference signal resources in the channel measurement resource pair associated with the Z first interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The first interference measurement resource is configured by a network device; the first interference measurement resource has an association relationship with multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information;

The first CSI measurement information includes rank indication RI information;

The RI information is associated with two first RI values, and each first RI value is one of the A first parameters; and each of the first RI values is not equal to the B first parameters any of the second parameters.
The apparatus of claim 37, wherein

the first type of CSI report includes second CSI measurement information;

The second CSI measurement information is obtained on multiple reference signal resources in the pair of channel measurement resources associated with the Z second interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The second interference measurement resource is configured by the network device; the second interference measurement resource is associated with the channel measurement resource pair associated with the first type of CSI information; or the second interference measurement resource is associated with Multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information have an associated relationship;

The second CSI measurement information includes rank indication RI information;

The RI information is respectively associated with a second RI value and a third RI value, the second RI value is equal to one of the A first parameters, and the second RI value is not equal to the Any one of the B second parameters; the third RI value is equal to one of the C third parameters, and the third RI value is not equal to any one of the D fourth parameters.
The apparatus of claim 36, wherein

the first type of CSI report includes third CSI measurement information;

The third CSI measurement information is obtained on multiple reference signal resources in the pair of channel measurement resources associated with the Z third interference measurement resources and the first type of CSI information, where Z is greater than or equal to an integer of 1;

The third interference measurement resource is configured by the network device; the third interference measurement resource is associated with the channel measurement resource pair associated with the first type of CSI information; or the third interference measurement resource is associated with Multiple reference signal resources in the channel measurement resource pair associated with the first type of CSI information have an associated relationship;

The third CSI measurement information includes rank indication RI information;

The RI information has an associated relationship with two RI values, and the two RI values are equal to a plurality of parameters in one parameter combination of the P parameter combinations.
The apparatus of claim 37, wherein the second type of CSI information comprises fourth CSI measurement information;

The fourth CSI measurement information is obtained on the reference signal resources associated with the Z fourth interference measurement resources and the second type of CSI information, where Z is an integer greater than or equal to 1;

The fourth CSI measurement information includes RI information;

The fourth interference measurement resource is configured by a network device; the fourth interference measurement resource has an association relationship with the reference signal resource associated with the second type of CSI information;

The RI information is associated with a fourth RI value, and the fourth RI value is equal to one of the E fifth parameters; and the fourth RI value is not equal to any of the F sixth parameters One.
The apparatus according to any one of claims 32 to 41, wherein the communication unit is a transceiver.
A method for reporting channel state information, characterized in that the method comprises:

Obtain configuration information, where the configuration information is used to indicate first codebook subset information and second codebook subset information; the first codebook subset information is associated with a first reference signal resource subset; the second codebook subset information This subset information is associated with a second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively associated with different transmission configuration indication states;

The channel state information CSI report is sent to the network device according to the first codebook subset information and the second codebook subset information.
The method of claim 43, wherein the method further comprises:

The configuration information is further used to indicate the first rank restriction indication information and the second rank restriction indication information;

The first rank restriction indication information is used to obtain rank indication RI information in the first type of CSI information, where the first type of CSI information is associated with a channel measurement resource pair;

The channel measurement resource pair is one of one or more channel measurement resource pairs determined from a reference signal resource set; the reference signal resource set includes K reference signal resources, where K is greater than or equal to 2 integer;

The second rank restriction indication information is used to obtain RI information in the second type of CSI information, where the second type of CSI information has an associated relationship with one of the K reference signal resources;

Wherein, the CSI report includes the first type of CSI information or the second type of CSI information.
The method of claim 43 or 44, wherein,

The first codebook subset information is used to determine the G seventh parameters and the H eighth parameters, where G and H are integers greater than or equal to 1, and the sum of G and H is equal to M5;

The second codebook subset information is used to determine the J ninth parameters and K tenth parameters, where J and K are integers greater than or equal to 1, and satisfy that the sum of J and K is equal to the M5;

Wherein, the M5 is an integer greater than 1; wherein, the M5 is determined based on the configuration information.
The method of claim 45, wherein

the CSI report includes fifth CSI measurement information;

The fifth CSI measurement information is obtained on the first reference signal resource and the second reference signal resource in the Z fifth interference measurement resource and channel measurement resource pairs;

Wherein, the fifth interference measurement resource is configured by the network device; the fifth interference measurement resource and the channel measurement resource pair have an associated relationship; or the first reference in the fifth interference measurement resource and the channel measurement resource pair The signal resource and the second reference signal resource have an associated relationship; Z is an integer greater than or equal to 1; the first reference signal resource belongs to the first reference signal resource subset, and the second reference signal resource belongs to the second reference A subset of signal resources.
The method of claim 46, wherein

The fifth CSI measurement information includes first PMI information and second PMI information;

The first PMI information is associated with one or more of the G seventh parameters; the first PMI information is not associated with any one of the H eighth parameters relation;

The second PMI information is associated with one or more ninth parameters among the J eighth parameters; the second PMI information is not associated with any tenth parameter among the K tenth parameters relation.
The method of claim 45, wherein

the CSI report includes sixth CSI measurement information;

The sixth CSI measurement information is obtained on the Z sixth interference measurement resources and one reference signal resource in the first reference signal resource subset;

The sixth interference measurement resource is configured by the network device; the sixth interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset; the Z is greater than or an integer equal to 1;

and / or,

The CSI report includes seventh CSI measurement information; the seventh CSI measurement information is obtained on the Z seventh interference measurement resources and one reference signal resource in the second reference signal resource subset;

The seventh interference measurement resource is configured by a network device; the seventh interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset; the Z is greater than or An integer equal to 1.
The method of claim 48, wherein

The sixth CSI measurement information includes third PMI information; the third PMI information has an associated relationship with one or more seventh parameters of the G seventh parameters; the third PMI information is associated with the H seventh parameters Any of the eighth parameters does not have an associated relationship;

and / or,

The seventh CSI measurement information includes fourth PMI information; the fourth PMI information has an associated relationship with one or more ninth parameters of the J eighth parameters; the fourth PMI information is associated with the K tenth parameters Any tenth parameter in the parameters does not have an associated relationship.
A method for reporting channel state information, characterized in that the method comprises:

Send configuration information, where the configuration information is used to indicate first codebook subset information and second codebook subset information; the first codebook subset information is associated with a first reference signal resource subset; the second codebook subset information This subset information is associated with a second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively associated with different transmission configuration indication states;

Receive a channel state information CSI report from the terminal according to the first codebook subset information and the second codebook subset information.
The method of claim 50, wherein the method further comprises:

The configuration information is further used to indicate the first rank restriction indication information and the second rank restriction indication information;

The first rank restriction indication information is used to obtain RI information in the first type of CSI information, where the first type of CSI information has an associated relationship with a channel measurement resource pair;

The channel measurement resource pair is one of one or more channel measurement resource pairs determined from a reference signal resource set; the reference signal resource set includes K reference signal resources, where K is greater than or equal to 2 integer;

The second rank restriction indication information is used to obtain RI information in the second type of CSI information, where the second type of CSI information has an associated relationship with one of the K reference signal resources;

Wherein, the CSI report includes the first type of CSI information or the second type of CSI information.
The method of claim 50 or 51, wherein,

The first codebook subset information is used to determine the G seventh parameters and the H eighth parameters, where G and H are integers greater than or equal to 1, and the sum of G and H is equal to M5;

The second codebook subset information is used to determine the J ninth parameters and K tenth parameters, where J and K are integers greater than or equal to 1, and satisfy that the sum of J and K is equal to the M5;

Wherein, the M5 is an integer greater than 1; wherein, the M5 is determined based on the configuration information.
The method of claim 52, wherein

the CSI report includes fifth CSI measurement information;

The fifth CSI measurement information is obtained on the first reference signal resource and the second reference signal resource in the Z fifth interference measurement resource and channel measurement resource pairs;

Wherein, the fifth interference measurement resource is configured by the network device; the fifth interference measurement resource and the channel measurement resource pair have an associated relationship; or the first reference in the fifth interference measurement resource and the channel measurement resource pair The signal resource and the second reference signal resource have an associated relationship; Z is an integer greater than or equal to 1; the first reference signal resource belongs to the first reference signal resource subset, and the second reference signal resource belongs to the second reference A subset of signal resources.
The method of claim 53, wherein

The fifth CSI measurement information includes first PMI information and second PMI information;

The first PMI information is associated with one or more of the G seventh parameters; the first PMI information is not associated with any one of the H eighth parameters relation;

The second PMI information is associated with one or more ninth parameters among the J eighth parameters; the second PMI information is not associated with any tenth parameter among the K tenth parameters relation.
The method of claim 52, wherein

the CSI report includes sixth CSI measurement information;

The sixth CSI measurement information is obtained on the Z sixth interference measurement resources and one reference signal resource in the first reference signal resource subset;

The sixth interference measurement resource is configured by the network device; the sixth interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset; the Z is greater than or an integer equal to 1;

and / or,

The CSI report includes seventh CSI measurement information; the seventh CSI measurement information is obtained on the Z seventh interference measurement resources and one reference signal resource in the second reference signal resource subset;

The seventh interference measurement resource is configured by a network device; the seventh interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset; the Z is greater than or An integer equal to 1.
The method of claim 55, wherein:

The sixth CSI measurement information includes third PMI information; the third PMI information has an associated relationship with one or more seventh parameters of the G seventh parameters; the third PMI information is associated with the H seventh parameters Any of the eighth parameters does not have an associated relationship;

and / or,

The seventh CSI measurement information includes fourth PMI information; the fourth PMI information has an associated relationship with one or more ninth parameters of the J eighth parameters; the fourth PMI information is associated with the K tenth parameters Any tenth parameter in the parameters does not have an associated relationship.
A communication device, characterized in that the device comprises:

a communication unit, configured to acquire configuration information, where the configuration information is used to indicate first codebook subset information and second codebook subset information; the first codebook subset information is associated with a first reference signal resource subset; The second codebook subset information is associated with a second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively associated with different transmission configuration indication states;

The communication unit is further configured to send a channel state information CSI report to a network device according to the first codebook subset information and the second codebook subset information.
The apparatus of claim 57, wherein:

The configuration information is further used to indicate the first rank restriction indication information and the second rank restriction indication information;

The first rank restriction indication information is used to obtain rank indication RI information in the first type of CSI information, where the first type of CSI information is associated with a channel measurement resource pair;

The channel measurement resource pair is one of one or more channel measurement resource pairs determined from a reference signal resource set; the reference signal resource set includes K reference signal resources, where K is greater than or equal to 2 integer;

The second rank restriction indication information is used to obtain RI information in the second type of CSI information, where the second type of CSI information has an associated relationship with one of the K reference signal resources;

Wherein, the CSI report includes the first type of CSI information or the second type of CSI information.
The apparatus of claim 57 or 58, wherein:

The first codebook subset information is used to determine the G seventh parameters and the H eighth parameters, where G and H are integers greater than or equal to 1, and the sum of G and H is equal to M5;

The second codebook subset information is used to determine the J ninth parameters and K tenth parameters, where J and K are integers greater than or equal to 1, and satisfy that the sum of J and K is equal to the M5;

Wherein, the M5 is an integer greater than 1; wherein, the M5 is determined based on the configuration information.
The apparatus of claim 59, wherein

the CSI report includes fifth CSI measurement information;

The fifth CSI measurement information is obtained on the first reference signal resource and the second reference signal resource in the Z fifth interference measurement resource and channel measurement resource pairs;

Wherein, the fifth interference measurement resource is configured by the network device; the fifth interference measurement resource and the channel measurement resource pair have an associated relationship; or the first reference in the fifth interference measurement resource and the channel measurement resource pair The signal resource and the second reference signal resource have an associated relationship; Z is an integer greater than or equal to 1; the first reference signal resource belongs to the first reference signal resource subset, and the second reference signal resource belongs to the second reference A subset of signal resources.
The apparatus of claim 60, wherein

The fifth CSI measurement information includes first PMI information and second PMI information;

The first PMI information is associated with one or more of the G seventh parameters; the first PMI information is not associated with any one of the H eighth parameters relation;

The second PMI information is associated with one or more ninth parameters among the J eighth parameters; the second PMI information is not associated with any tenth parameter among the K tenth parameters relation.
The apparatus of claim 59, wherein

the CSI report includes sixth CSI measurement information;

The sixth CSI measurement information is obtained on the Z sixth interference measurement resources and one reference signal resource in the first reference signal resource subset;

The sixth interference measurement resource is configured by the network device; the sixth interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset; the Z is greater than or an integer equal to 1;

and / or,

The CSI report includes seventh CSI measurement information; the seventh CSI measurement information is obtained on the Z seventh interference measurement resources and one reference signal resource in the second reference signal resource subset;

The seventh interference measurement resource is configured by a network device; the seventh interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset; the Z is greater than or An integer equal to 1.
The apparatus of claim 62, wherein:

The sixth CSI measurement information includes third PMI information; the third PMI information has an associated relationship with one or more seventh parameters of the G seventh parameters; the third PMI information is associated with the H seventh parameters Any of the eighth parameters does not have an associated relationship;

and / or,

The seventh CSI measurement information includes fourth PMI information; the fourth PMI information has an associated relationship with one or more ninth parameters of the J eighth parameters; the fourth PMI information is associated with the K tenth parameters Any tenth parameter in the parameters does not have an associated relationship.
The apparatus according to any one of claims 57 to 63, wherein the communication unit is a transceiver.
A communication device, characterized in that the device comprises:

a communication unit, configured to send configuration information, where the configuration information is used to indicate first codebook subset information and second codebook subset information; the first codebook subset information is associated with a first reference signal resource subset; The second codebook subset information is associated with a second reference signal resource subset; the first reference signal resource subset and the second reference signal resource subset are respectively associated with different transmission configuration indication states;

The communication unit is further configured to receive the channel state information CSI report from the terminal according to the first codebook subset information and the second codebook subset information.
The apparatus of claim 65, wherein

The configuration information is further used to indicate the first rank restriction indication information and the second rank restriction indication information;

The first rank restriction indication information is used to obtain the first type of CSI information, and the first type of CSI information has an associated relationship with a channel measurement resource pair;

The channel measurement resource pair is one of one or more channel measurement resource pairs determined from a reference signal resource set; the reference signal resource set includes K reference signal resources, where K is greater than or equal to 2 integer;

The second rank restriction indication information is used to obtain the second type of CSI information, and the second type of CSI information has an associated relationship with one of the K reference signal resources;

Wherein, the CSI report includes the first type of CSI information or the second type of CSI information.
An apparatus as claimed in claim 65 or 66, characterized in that,

The first codebook subset information is used to determine the G seventh parameters and the H eighth parameters, where G and H are integers greater than or equal to 1, and the sum of G and H is equal to M5;

The second codebook subset information is used to determine the J ninth parameters and K tenth parameters, where J and K are integers greater than or equal to 1, and satisfy that the sum of J and K is equal to the M5;

Wherein, the M5 is an integer greater than 1; wherein, the M5 is determined based on the configuration information.
The apparatus of claim 67, wherein:

the CSI report includes fifth CSI measurement information;

The fifth CSI measurement information is obtained on the first reference signal resource and the second reference signal resource in the Z fifth interference measurement resource and channel measurement resource pairs;

Wherein, the fifth interference measurement resource is configured by the network device; the fifth interference measurement resource and the channel measurement resource pair have an associated relationship; or the first reference in the fifth interference measurement resource and the channel measurement resource pair The signal resource and the second reference signal resource have an associated relationship; Z is an integer greater than or equal to 1; the first reference signal resource belongs to the first reference signal resource subset, and the second reference signal resource belongs to the second reference A subset of signal resources.
The apparatus of claim 68, wherein:

The fifth CSI measurement information includes first PMI information and second PMI information;

The first PMI information is associated with one or more of the G seventh parameters; the first PMI information is not associated with any one of the H eighth parameters relation;

The second PMI information is associated with one or more ninth parameters among the J eighth parameters; the second PMI information is not associated with any tenth parameter among the K tenth parameters relation.
The apparatus of claim 67, wherein:

the CSI report includes sixth CSI measurement information;

The sixth CSI measurement information is obtained on the Z sixth interference measurement resources and one reference signal resource in the first reference signal resource subset;

The sixth interference measurement resource is configured by the network device; the sixth interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset; the Z is greater than or an integer equal to 1;

and / or,

The CSI report includes seventh CSI measurement information; the seventh CSI measurement information is obtained on the Z seventh interference measurement resources and one reference signal resource in the second reference signal resource subset;

The seventh interference measurement resource is configured by a network device; the seventh interference measurement resource is associated with the one reference signal resource in the first reference signal resource subset; the Z is greater than or An integer equal to 1.
The apparatus of claim 70, wherein:

The sixth CSI measurement information includes third PMI information; the third PMI information has an associated relationship with one or more seventh parameters of the G seventh parameters; the third PMI information is associated with the H seventh parameters Any of the eighth parameters does not have an associated relationship;

and / or,

The seventh CSI measurement information includes fourth PMI information; the fourth PMI information has an associated relationship with one or more ninth parameters of the J eighth parameters; the fourth PMI information is associated with the K tenth parameters Any tenth parameter in the parameters does not have an associated relationship.
The apparatus according to any one of claims 65 to 71, wherein the communication unit is a transceiver.
A communication device, comprising:

memory for storing computer programs;

a processor for executing a computer program stored in a memory to perform the method of any one of claims 1 to 10; or to perform the method of any one of claims 11 to 20; or to perform the right The method of any one of claims 43 to 49; or to perform the method of any one of claims 50 to 56.
A communication device, characterized in that it includes at least one processor coupled to at least one memory, and the at least one processor is configured to execute computer programs or instructions stored in the at least one memory to cause A method as claimed in any one of claims 1 to 10 is implemented; or such that a method as claimed in any one of claims 11 to 20 is implemented; or so as to enable a method as claimed in any one of claims 43 to 49 The method described is realized; or such that the method according to any one of claims 50 to 56 is realized.
The communication device according to claim 73 or 74, wherein the communication device is a chip or a chip system.
A computer-readable storage medium, characterized by comprising instructions that, when executed on a computer, cause the computer to execute the method of any one of claims 1 to 10; or to execute any one of claims 11 to 20 The method of claim 43; or the method of any one of claims 43 to 49; or the method of any one of claims 50 to 56.
A computer program product, characterized in that the computer program product includes a computer program or instructions, which, when executed on a computer, cause the method according to any one of claims 1 to 10 to be realize; or cause the method as claimed in any one of claims 11 to 20 to be realized; or as described in any one of claims 43 to 49 to be realized; or as described in any one of claims 50 to 56 method is implemented.